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Aziz H, Kwon YIC, Park AMG, Lai A, Lee KYC, Zhang D, Kwon Y, Pawlik TM. Recent advancements in management for noncolorectal, nonneuroendocrine hepatic metastases. J Gastrointest Surg 2024; 28:1922-1932. [PMID: 39154708 DOI: 10.1016/j.gassur.2024.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Revised: 08/11/2024] [Accepted: 08/13/2024] [Indexed: 08/20/2024]
Abstract
BACKGROUND Owing to the heterogeneity of underlying primary tumors, noncolorectal, nonneuroendocrine metastases to the liver (NCNNMLs), although relatively rare, pose major challenges to treatment and long-term management. Despite being considered the gold standard for colorectal cancer liver metastases, the role of surgical resection for NCNNML remains controversial. Furthermore, advancements in locoregional treatment modalities, such as ablation and various chemotherapeutic modalities, have contributed to the treatment of patients with NCNNML. METHODS This was a comprehensive review of literature that used Medline/PubMed, Google Scholar, the Cochrane Library, and the Web of Science, which were accessed between 2014 and 2024. RESULTS NCNNMLs are rare tumor entities with varied presentation and outcomes. A multidisciplinary approach, which includes chemotherapy, surgery, and interventional radiologic techniques, can be implemented with good results. CONCLUSION Given the complex nature of NCNNML, its management should be highly individualized and multidisciplinary. Locoregional treatments, such as surgical resection and/or ablation, may be more appropriate for select patients and should be offered as a viable therapeutic option for a subset of individuals.
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Affiliation(s)
- Hassan Aziz
- Department of Surgery, University of Iowa Hospitals and Clinics, Iowa City, IA, United States
| | - Ye In Christopher Kwon
- Department of Surgery, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Andrew Min-Gi Park
- Department of Surgery, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Alan Lai
- Department of Surgery, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Kerry Yi Chen Lee
- Department of Surgery, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Dean Zhang
- Department of Surgery, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Yeseo Kwon
- Department of Surgery, School of Medicine, Tufts University, Boston, MA, United States
| | - Timothy M Pawlik
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH, United States.
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Liu L, Xia X, Ju Y, Zhang S, Shi N, Du Y, Zhan H, Liu S. Effects of surgical management for gastrointestinal stromal tumor patients with liver metastasis on survival outcomes. Front Oncol 2024; 14:1289885. [PMID: 38347834 PMCID: PMC10860711 DOI: 10.3389/fonc.2024.1289885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 01/08/2024] [Indexed: 02/15/2024] Open
Abstract
Purpose To investigate the effect of surgical resection on survival in gastrointestinal stromal tumors synchronous liver metastasis (GIST-SLM) and to develop clinically usable predictive models for overall survival (OS) and cancer-specific survival (CSS) in patients. Methods We identified patients in the SEER database diagnosed with GISTs from 2010 to 2019. We used propensity score matching (PSM) to balance the bias between the Surgery and No surgery groups. Kaplan-Meier(K-M) analysis was used to detect differences in OS and CSS between the two groups. The nomogram to predict 1, 3, and 5-year OS and CSS were developed and evaluated. Results After PSM, 228 patients were included in this study. There were significant differences in 1, 3, and 5-year OS and CSS between the two groups (OS: 93.5% vs. 84.4%, 73.2% vs. 55.3%, 60.9% vs. 36.9%, P=0.014; CSS: 3.5% vs.86.2%,75.3% vs.57.9%, 62.6% vs. 42.9%, P=0.02). We also found that patients who received surgery combined with targeted therapy had better OS and CSS at 1, 3, and 5 years than those who received surgery only (OS: 96.6% vs.90.9%, 74.9% vs. 56.8%, 61.7% vs. 35.5%, P=0.022; CSS: 96.6% vs. 92.1%, 77.4% vs.59.2%,63.8% vs. 42.0%, P=0.023). The area under the curve (AUC) was 0.774, 0.737, and 0.741 for 1, 3, and 5-year OS, respectively, with 0.782 and 0.742 for 1, 3, and 5-year CSS. In the model, C-index was 0.703 for OS and 0.705 for CSS and showed good consistency. Conclusion Surgical treatment can improve the OS and CSS of patients with GIST-SLM. In addition, the combination with chemotherapy may be more favorable for the long-term survival of patients. Meanwhile, we constructed the nomograms for predicting OS and CSS at 1, 3, and 5-year, and validated them internally. Our model can contribute to clinical management and treatment strategy optimization.
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Affiliation(s)
- Lei Liu
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Xiaomin Xia
- Department of Prosthodontics, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yiheng Ju
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Simeng Zhang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ning Shi
- Department of General Surgery, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Yongxing Du
- Department of Pancreatic and Gastric Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hanxiang Zhan
- Department of General Surgery, Qilu Hospital, Shandong University, Jinan, Shandong, China
| | - Shanglong Liu
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao, China
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Qian JL, Hu ZM, He K, He YZ. Liver transplantation combined with tyrosine kinase inhibitors for the treatment of hepatic metastatic giant gastrointestinal stromal tumors: A case report and literature review. FRONTIERS IN GASTROENTEROLOGY 2022; 1. [DOI: 10.3389/fgstr.2022.884507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2025]
Abstract
BackgroundSurgical resection combined with oral tyrosine kinase inhibitors(TKI) is the most effective treatment for gastrointestinal stromal tumor(GIST) liver metastases. Liver transplantation (LT) is the last resort for the treatment of terminal liver malignancy. Whether it can be a potential treatment option for liver metastases from unresectable GIST is worth exploring.Case presentationWe report a 38-year-old woman who underwent jejunal stromal tumor resection and TKI(imatinib) therapy 15 years ago for jejunal stromal tumor liver metastases. During the period from 2015 to 2018, the liver metastases continued to grow after the patient stopped taking imatinib voluntarily, and the patient subsequently underwent multiple interventional surgeries and drug treatments, which were still poorly curative. The tumor was deemed unresectable because it filled the entire liver, and the patient subsequently underwent LT and was treated with imatinib post-operatively, which resulted in no recurrence of the tumor within 18 months of follow-up.Literature reviewThere are few reports in the literature on LT for the treatment of liver metastases from GIST. A systematic review and summary of the current literature by literature search revealed that LT as a last resort for metastatic GIST of the liver remains a major challenge.ConclusionsLT combined with TKI-targeted therapy is a potential therapy worth exploring for patients with unresectable metastatic GIST.
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Sakata M, Kaneyoshi T, Fushimi T, Watanabe J. Rare cause of cystic liver lesions: Liver metastasis of gastrointestinal stromal tumors. JGH OPEN 2021; 5:408-409. [PMID: 33732891 PMCID: PMC7936617 DOI: 10.1002/jgh3.12487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/19/2020] [Accepted: 12/26/2020] [Indexed: 12/21/2022]
Abstract
Gastrointestinal stromal tumors (GISTs) are rare mesenchymal neoplasms of the gastrointestinal tract with an annual incidence of 1–2 per 10 000 people. Although most GISTs are solid, they may present with predominantly cystic components. A 69‐year‐old Japanese woman presented with a recently elevated gamma‐glutamyl transpeptidase level. Computed tomography revealed multiple space‐occupying lesions (SOLs) in the liver. These SOLs appear cystic on magnetic resonance imaging and abdominal ultrasound and are associated with thick walls at the margins. In addition, these thick walls showed high intensity on diffusion‐weighted images. She was diagnosed with liver metastasis of GIST by diagnostic biopsies from the thick parts of the cystic liver lesion (thick walls at the margins). The primary lesion was thought to be located along the medial side of the descending part of the duodenum, but a duodenal biopsy was initially undiagnosed. Liver metastases due to GISTs are known to cause cystic changes after treatment, such as imatinib mesylate. However, to the best of our knowledge, only six cases where hepatic GIST with predominantly cystic changes (prior to any treatment) have been reported. It should be noted that GISTs appear cystic in all organs.
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Affiliation(s)
- Masahiro Sakata
- Department of GastroenterologyNational Hospital Organization, Fukuyama Medical CenterFukuyamaJapan
| | - Toshihiko Kaneyoshi
- Department of GastroenterologyNational Hospital Organization, Fukuyama Medical CenterFukuyamaJapan
| | - Takashi Fushimi
- Department of GastroenterologyNational Hospital Organization, Fukuyama Medical CenterFukuyamaJapan
| | - Jiro Watanabe
- Department of Laboratory and PathologyNational Hospital Organization, Fukuyama Medical CenterFukuyamaJapan
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Yang DP, Zhuang BW, Wang YZ, Lin MX, Xu M, Kuang M, Lei YY, Xie XY, Xie XH. Thermal ablation versus hepatic resection for the treatment of liver metastases from gastrointestinal stromal tumors: a retrospective study. Int J Hyperthermia 2020; 37:592-599. [PMID: 32484012 DOI: 10.1080/02656736.2020.1772513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Objective: The study aimed to compare effectiveness and safety of thermal ablation and hepatic resection in patients with liver metastases of gastrointestinal stromal tumors (GISTs).Method: A total of 55 patients (27 in the ablation group and 28 in the surgery group) with liver metastases were included. Overall survival (OS) and progression-free survival (PFS) were assessed with Kaplan-Meier's survival estimate curves. Univariate and multivariate regression analyses were carried out to identify potential prognostic factors.Results: The median OS was 102.0 months in the ablation group and 117.0 months in the surgery group (p = .875). The 1-, 3- and 5-year OS rates were 100%, 88.9% and 74.1% in the ablation group and 92.8%, 82.1% and 78.6% in the surgery group, respectively. The 1-, 3- and 5-year PFS rates were 48.1%, 25.9% and 18.5% in the ablation group and 67.8%, 64.3% and 64.3% in the surgery group, respectively. Multivariate analysis showed that preoperative tyrosine kinase inhibitor (TKI) treatment (progressive disease, PD) (HR, 13.985; 95% CI, 1.791-109.187; p = .012) was the only significant independent prognostic factor for OS. Tumor number (HR, 1.318; 95% CI, 1.021-1.702; p = .034) was identified as an independent predictor for PFS in multivariate analysis. There were fewer postoperative complications (18.5% vs. 78.6%, p = .001) and shorter lengths of hospital stay (8.0 vs. 16.5 days, p = .001) in the ablation group.Conclusion: Compared with resection, thermal ablation offered comparable OS for liver metastases of GISTs. Furthermore, thermal ablation had the advantages of fewer complications and shorter lengths of hospital stay.
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Affiliation(s)
- Dao-Peng Yang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Bo-Wen Zhuang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yu-Zhao Wang
- Sun Yat-Sen University School of Medicine, Guangzhou, China
| | - Man-Xia Lin
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Ming Xu
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Ming Kuang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.,Department of Liver Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yang-Yang Lei
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Xiao-Yan Xie
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Xiao-Hua Xie
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
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Wang J, Yin Y, Shen C, Yin X, Cai Z, Pu L, Fu W, Wang Y, Zhang B. Preoperative imatinib treatment in patients with locally advanced and metastatic/recurrent gastrointestinal stromal tumors: A single-center analysis. Medicine (Baltimore) 2020; 99:e19275. [PMID: 32118738 PMCID: PMC7478449 DOI: 10.1097/md.0000000000019275] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 12/13/2019] [Accepted: 01/22/2020] [Indexed: 02/07/2023] Open
Abstract
The advent of imatinib mesylate (IM) has dramatically revolutionized the prognosis of advanced and metastatic/recurrent gastrointestinal stromal tumors (GISTs). The objective of this retrospective study is to investigate the safety and efficacy of combination of surgery following IM treatment in the management of advanced and metastatic/recurrent GISTs. We further explore the long-term clinical outcomes in these who underwent therapy of preoperative IM.Eligible patients with GISTs before the onset of the IM therapy and were periodically followed up in the outpatient clinic were included in this study. Detailed clinical and pathologic characteristics were obtained from the medical records of our institution. Univariate and multivariate regression analyses were performed to use for the evaluation of potential prognostic factors.A total of 51 patients were included in the study, of these patients, 36 patients underwent surgery and median duration of preoperative IM is 8.2months (range 3.5-85 months). Significant median tumor shrinkage rate was 29.27% (95% confidence interval 21.00%-34.00%) observed in these patients who responded to IM, and partial response and stable disease were achieved in 24 patients (47.06%) and 23 patients (45.10%), respectively, in light of the RECIST guideline (version 1.1). After the median follow-up of 43.70 months (range 14.2-131.1 months), 1- and 3-year overall survival (OS) were estimated to be 96.1% and 94.0%, respectively, and there was a significant improvement in OS for patients who received surgical intervention versus those who did not.Our study consolidates that patients were received preoperative IM therapy could shrink the size of tumors and facilitate organ-function preservation. The long-term analysis on this study supports that surgical intervention following IM therapy benefits for patients with primary advanced and recurrent or metastatic GISTs on long-term prognosis.
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Sanchez-Hidalgo JM, Duran-Martinez M, Molero-Payan R, Rufian-Peña S, Arjona-Sanchez A, Casado-Adam A, Cosano-Alvarez A, Briceño-Delgado J. Gastrointestinal stromal tumors: A multidisciplinary challenge. World J Gastroenterol 2018; 24:1925-1941. [PMID: 29760538 PMCID: PMC5949708 DOI: 10.3748/wjg.v24.i18.1925] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/27/2018] [Accepted: 05/06/2018] [Indexed: 02/06/2023] Open
Abstract
Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors located in the alimentary tract. Its usual manifestation is gastrointestinal bleeding. However, small asymptomatic lesions are frequently detected as incidental finding. Characteristically, most GISTs (> 95%) are positive for the KIT protein (CD117) by IHC staining and approximately 80%-90% of GISTs carry a mutation in the c-KIT or PDGFRA genes. Mutational analysis should be performed when planning adjuvant and neoadjuvant therapy, due to its possible resistance to conventional treatment. The arise of tyrosine kinase inhibitor has supposed a revolution in GISTs treatment being useful as adjuvant, neoadjuvant or recurrence disease treatment. That is why a multidisciplinary approach to this disease is required. The correct characterization of the tumor at diagnosis (the diagnosis of recurrences and the evaluation of the response to treatment with tyrosine kinase inhibitors) is fundamental for facing these tumors and requires specialized Endoscopist, Radiologists and Nuclear Medicine Physician. Surgery is the only potentially curative treatment for suspected resectable GIST. In the case of high risk GISTs, surgery plus adjuvant Imatinib-Mesylate for 3 years is the standard treatment. Neoadjuvant imatinib-mesylate should be considered to shrink the tumor in case of locally advanced primary or recurrence disease, unresectable or potentially resectable metastasic tumors, and potentially resectable disease in complex anatomic locations to decrease the related morbidity. In the case of Metastatic GIST under Neoadjuvant treatment, when there are complete response, stable disease or limited disease progression, complete cytoreductive surgery could be a therapeutic option if feasible.
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Affiliation(s)
- Juan Manuel Sanchez-Hidalgo
- Department of General and Digestive Surgery, Reina Sofia University Hospital, Avda. Menéndez Pidal s/n, Cordoba 14004, Spain
| | - Manuel Duran-Martinez
- Department of General and Digestive Surgery, Reina Sofia University Hospital, Avda. Menéndez Pidal s/n, Cordoba 14004, Spain
| | - Rafael Molero-Payan
- Department of Intern Medicine, Reina Sofia University Hospital, Avda. Menéndez Pidal s/n, Cordoba 14004, Spain
- Lipids and Atherosclerosis Research Unit, IMIBIC/Hospital Universitario Reina Sofía/Universidad de Córdoba, Cordoba 14004, Spain
| | - Sebastian Rufian-Peña
- Department of General and Digestive Surgery, Reina Sofia University Hospital, Avda. Menéndez Pidal s/n, Cordoba 14004, Spain
| | - Alvaro Arjona-Sanchez
- Department of General and Digestive Surgery, Reina Sofia University Hospital, Avda. Menéndez Pidal s/n, Cordoba 14004, Spain
| | - Angela Casado-Adam
- Department of General and Digestive Surgery, Reina Sofia University Hospital, Avda. Menéndez Pidal s/n, Cordoba 14004, Spain
| | - Antonio Cosano-Alvarez
- Department of General and Digestive Surgery, Reina Sofia University Hospital, Avda. Menéndez Pidal s/n, Cordoba 14004, Spain
| | - Javier Briceño-Delgado
- Department of General and Digestive Surgery, Reina Sofia University Hospital, Avda. Menéndez Pidal s/n, Cordoba 14004, Spain
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Yoon IS, Shin JH, Han K, Kim PN, Kim KH, Kang YK, Ko HK. Ultrasound-Guided Intraoperative Radiofrequency Ablation and Surgical Resection for Liver Metastasis from Malignant Gastrointestinal Stromal Tumors. Korean J Radiol 2018; 19:54-62. [PMID: 29354000 PMCID: PMC5768508 DOI: 10.3348/kjr.2018.19.1.54] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Accepted: 07/01/2017] [Indexed: 01/22/2023] Open
Abstract
Objective To evaluate the effectiveness, safety, and feasibility of intraoperative radiofrequency ablation (IORFA) under ultrasound guidance for the treatment of liver metastases from gastrointestinal stromal tumors (GISTs). Materials and Methods From August 2009 to February 2017, 24 patients with liver metastases of GISTs underwent IORFA, 14 underwent concurrent IORFA and primary GIST resection, and 10 underwent IORFA to treat hepatic recurrence after previous primary GIST resection. Seventy-six hepatic metastases were treated, of which 47 were surgically resected and 29 underwent IORFA. All included patients received imatinib therapy as standard treatment before and after IORFA or surgical resection. A retrospective medical record review was conducted, and follow-up data were collected. Technical success and effectiveness, overall and GIST-specific survival, and complications were assessed. Results The mean follow-up duration was 50.7 ± 34.7 months. The technical success rate of IORFA was 100%. New metastases developed in three of the 24 patients (12.5%) following a complete response 16, 51, and 95 months after IORFA, respectively. The cumulative one-, three-, and five-year overall survival rates were 100, 94.4, and 87.7%, respectively. The one-, three-, and five-year GIST-related survival rates were 100, 94.4, and 94.4%, respectively. Two major complications (biliary stricture and hepatic abscess) were observed. Conclusion IORFA appears to be a feasible and safe treatment option for liver metastasis in patients with primary GISTs. In addition, IORFA and surgical resection may be complementary, helping to obtain complete response in cases of otherwise inoperable liver metastases secondary to GISTs.
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Affiliation(s)
- In Sun Yoon
- Department of Radiology, Asan Medical Center, Ulsan University College of Medicine, Seoul 05505, Korea
| | - Ji Hoon Shin
- Department of Radiology, Asan Medical Center, Ulsan University College of Medicine, Seoul 05505, Korea
| | - Kichang Han
- Department of Radiology, Asan Medical Center, Ulsan University College of Medicine, Seoul 05505, Korea
| | - Pyo Nyun Kim
- Department of Radiology, Asan Medical Center, Ulsan University College of Medicine, Seoul 05505, Korea
| | - Ki Hun Kim
- Department of Surgery, Asan Medical Center, Ulsan University College of Medicine, Seoul 05505, Korea
| | - Yoon-Koo Kang
- Department of Oncology, Asan Medical Center, Ulsan University College of Medicine, Seoul 05505, Korea
| | - Heung Kyu Ko
- Department of Radiology, Asan Medical Center, Ulsan University College of Medicine, Seoul 05505, Korea
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Machairas N, Prodromidou A, Molmenti E, Kostakis ID, Sotiropoulos GC. Management of liver metastases from gastrointestinal stromal tumors: where do we stand? J Gastrointest Oncol 2017; 8:1100-1108. [PMID: 29299371 DOI: 10.21037/jgo.2017.08.08] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The recommended management of liver metastases (LM) from gastrointestinal stromal tumors (GISTs) disease consists of perioperative administration of tyrosine kinase inhibitors (TKIs) and surgical resection. The aim of our study was to investigate the efficacy of this therapeutic approach. Studies reporting outcomes for patients underwent liver resection from metastatic gastrointestinal stromal tumor (GIST) were overviewed. Eleven studies were included, which enrolled 240 patients with liver metastasis from GISTs. A median overall survival (OS) interval of 41.8 months was calculated while a median disease free interval of 17.9 [17-43] months following resection was also measured. Recurrences were recorded in 63 patients. Prognostic factors identified by the studies included surgical resection, R0 resection, age <55 years, clinical response to TKIs, pre- and postoperative administration of TKIs. The included studies highlight the importance of complete resection and the timing of resection, as well underline the importance of pre- and post-operative administration of TKIs.
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Affiliation(s)
- Nikolaos Machairas
- Second Department of Propaedeutic Surgery, "Laiko" General Hospital, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Anastasia Prodromidou
- Second Department of Propaedeutic Surgery, "Laiko" General Hospital, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Ernesto Molmenti
- Department of Surgery, North Shore University Hospital, Manhasset, New York, USA
| | - Ioannis D Kostakis
- Second Department of Propaedeutic Surgery, "Laiko" General Hospital, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Georgios C Sotiropoulos
- Second Department of Propaedeutic Surgery, "Laiko" General Hospital, National and Kapodistrian University of Athens, Medical School, Athens, Greece
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Yamashita K, Baba Y, Kurashige J, Iwatsuki M, Imai K, Hashimoto D, Sakamoto Y, Chikamoto A, Yoshida N, Beppu T, Baba H. Co-occurrence of liver metastasis of gastrointestinal stromal tumor and hepatocellular carcinoma: a case report. Surg Case Rep 2016; 2:86. [PMID: 27586263 PMCID: PMC5009055 DOI: 10.1186/s40792-016-0212-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 08/05/2016] [Indexed: 12/14/2022] Open
Abstract
Gastrointestinal stromal tumors (GISTs) are potentially malignant mesenchymal tumors that can give rise to distant metastases, mainly in the liver. The co-occurrence of synchronous primary liver tumors (e.g., hepatocellular carcinoma (HCC)) in patients with GIST is extremely rare. This report describes a 77-year-old male patient with liver metastasis of GIST originating in the small intestine and synchronous HCC. The patient had undergone resection of the small intestine for the primary GIST 3 years earlier and partial hepatectomy and radiofrequency ablation for liver metastases of GIST 1 year earlier. Despite the continuation of adjuvant therapy with imatinib, two new lesions in the liver were detected by follow-up computed tomography scanning, which showed the gradual enlargement of one tumor. A second hepatectomy was performed. Pathological examination revealed that one tumor was a liver metastasis of GIST and the other was a primary HCC. To our knowledge, this is the first report of the synchronous co-occurrence of a liver metastasis of GIST and a primary HCC.
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Affiliation(s)
- Kohei Yamashita
- Department of Gastroenterological Surgery, Kumamoto University Graduate School of Medical Sciences, 1-1-1 Honjo, Chuo-ku, Kumamoto City, 860-8556, Japan
| | - Yoshifumi Baba
- Department of Gastroenterological Surgery, Kumamoto University Graduate School of Medical Sciences, 1-1-1 Honjo, Chuo-ku, Kumamoto City, 860-8556, Japan
| | - Junji Kurashige
- Department of Gastroenterological Surgery, Kumamoto University Graduate School of Medical Sciences, 1-1-1 Honjo, Chuo-ku, Kumamoto City, 860-8556, Japan
| | - Masaaki Iwatsuki
- Department of Gastroenterological Surgery, Kumamoto University Graduate School of Medical Sciences, 1-1-1 Honjo, Chuo-ku, Kumamoto City, 860-8556, Japan
| | - Katsunori Imai
- Department of Gastroenterological Surgery, Kumamoto University Graduate School of Medical Sciences, 1-1-1 Honjo, Chuo-ku, Kumamoto City, 860-8556, Japan
| | - Daisuke Hashimoto
- Department of Gastroenterological Surgery, Kumamoto University Graduate School of Medical Sciences, 1-1-1 Honjo, Chuo-ku, Kumamoto City, 860-8556, Japan
| | - Yasuo Sakamoto
- Department of Gastroenterological Surgery, Kumamoto University Graduate School of Medical Sciences, 1-1-1 Honjo, Chuo-ku, Kumamoto City, 860-8556, Japan
| | - Akira Chikamoto
- Department of Gastroenterological Surgery, Kumamoto University Graduate School of Medical Sciences, 1-1-1 Honjo, Chuo-ku, Kumamoto City, 860-8556, Japan
| | - Naoya Yoshida
- Department of Gastroenterological Surgery, Kumamoto University Graduate School of Medical Sciences, 1-1-1 Honjo, Chuo-ku, Kumamoto City, 860-8556, Japan
| | - Toru Beppu
- Department of Gastroenterological Surgery, Kumamoto University Graduate School of Medical Sciences, 1-1-1 Honjo, Chuo-ku, Kumamoto City, 860-8556, Japan
| | - Hideo Baba
- Department of Gastroenterological Surgery, Kumamoto University Graduate School of Medical Sciences, 1-1-1 Honjo, Chuo-ku, Kumamoto City, 860-8556, Japan.
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Radioembolization in Patients with Progressive Gastrointestinal Stromal Tumor Liver Metastases Undergoing Treatment with Tyrosine Kinase Inhibitors. J Vasc Interv Radiol 2015; 26:231-8. [DOI: 10.1016/j.jvir.2014.09.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2014] [Revised: 09/13/2014] [Accepted: 09/27/2014] [Indexed: 12/14/2022] Open
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Liu Q, Liu J, Chen W, Mao S, Guo Y. Primary solitary fibrous tumors of liver: a case report and literature review. Diagn Pathol 2013; 8:195. [PMID: 24294990 PMCID: PMC3942811 DOI: 10.1186/1746-1596-8-195] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 11/18/2013] [Indexed: 02/07/2023] Open
Abstract
A 42-year-old male presented right upper abdomen pain for more than 6 days, which misdiagnose calculus of intrahepatic duct and acute cholecystitis. An approximately 1.5 cm x 1.0 cm x 1.0 cm nodule was found and resected in left lateral lobe of hepatic. Pathological examination showed spindle cell and fibroblast -like cells within the collagenous stroma. Immunohistochemically, these spindle tumor cells showed diffuse Vim and Bcl-2 positive reactivity, but S-100 protein and HMB45 were negative. The post-operative course was uneventful. Solitary fibrous tumors of the liver, although rare, should be differentiated from mesenchymal lesions of the liver.
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Affiliation(s)
| | - Jing Liu
- Department of General Surgery, The 175th Hospital PLA (Affiliated Dongnan Hospital of Xiamen University), NO, 269, Zhanghua Middle Road, Zhangzhou 363000, Fujian Province, China.
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Bakoyiannis A, Delis S, Triantopoulou C, Dervenis C. Rare cystic liver lesions: A diagnostic and managing challenge. World J Gastroenterol 2013; 19:7603-7619. [PMID: 24282350 PMCID: PMC3837259 DOI: 10.3748/wjg.v19.i43.7603] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 09/09/2013] [Accepted: 09/17/2013] [Indexed: 02/06/2023] Open
Abstract
Cystic formations within the liver are a frequent finding among populations. Besides the common cystic lesions, like simple liver cysts, rare cystic liver lesions like cystadenocarcinoma should also be considered in the differential diagnosis. Thorough knowledge of each entity’s nature and course are key elements to successful treatment. Detailed search in PubMed, Cochrane Database, and international published literature regarding rare cystic liver lesions was carried out. In our research are included not only primary rare lesions like cystadenoma, hydatid cyst, and polycystic liver disease, but also secondary ones like metastasis from gastrointestinal stromal tumors lesions. Up-to date knowledge regarding diagnosis and management of rare cystic liver lesions is provided. A diagnostic and therapeutic algorithm is also proposed. The need for a multidisciplinary approach by a team including radiologists and surgeons familiar with liver cystic entities, diagnostic tools, and treatment modalities is stressed. Patients with cystic liver lesions must be carefully evaluated by a multidisciplinary team, in order to receive the most appropriate treatment, since many cystic liver lesions have a malignant potential and evolution.
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14
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Bamboat ZM, DeMatteo RP. Metastasectomy for gastrointestinal stromal tumors. J Surg Oncol 2013; 109:23-7. [PMID: 24155153 DOI: 10.1002/jso.23451] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Accepted: 09/10/2013] [Indexed: 12/12/2022]
Abstract
Gastrointestinal stromal tumor (GIST) is the most common sarcoma of the intestinal tract. Improvements in understanding the molecular pathogenesis of GIST have resulted in novel treatment strategies combining surgery with tyrosine kinase inhibitors (TKIs). Metastasectomy in carefully selected patients who have stable or responsive disease on imatinib should be considered in the multidisciplinary setting. We review existing data on surgical cytoreduction in metastatic GIST while on targeted therapy and compare outcomes with either treatment alone.
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Affiliation(s)
- Zubin M Bamboat
- Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York
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15
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Abstract
Management of patients with gastrointestinal stromal tumor (GIST) typically involves a combination of surgical, pathologic, and pharmacologic interventions. Gastroenterologists are often the first specialists to encounter patients presenting with GIST and are therefore responsible for facilitating early intervention strategies. Although patients with gastric or small-bowel GISTs typically present with symptoms, a diagnosis of GIST should be considered whenever a submucosal lesion is seen endoscopically. Visualization by standard endoscopy often can determine tumor location and size, although endoscopic ultrasound (EUS) is the most accurate imaging technique for submucosal lesions. Biopsy techniques that yield sufficient tumor samples for diagnostic studies, such as EUS-guided fine needle aspiration, are essential, although other approaches such as EUS-guided core needle biopsy may increase diagnostic yield for subepithelial lesions. Pathology assessment should include immunohistochemical staining for KIT and possibly DOG1 expression, and mutational analysis can have prognostic and predictive value for certain patients. R0 resection is the goal for patients with localized or potentially resectable tumors, which often can be accomplished by laparoscopic resection, even for larger tumors. Medical oncologists play a key role in assessing risk of recurrence after resection and optimizing tyrosine kinase inhibitor therapy in the adjuvant or metastatic setting. Cytoreductive surgery may have value for patients with recurrent or metastatic GIST who exhibit stable disease or respond to tyrosine kinase inhibitor therapy. A coordinated multidisciplinary approach over the course of the disease will serve to enhance communication among GIST team members, reduce risk of progression, and optimize outcomes.
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Hakimé A, Le Cesne A, Deschamps F, Farouil G, Boudabous S, Aupérin A, Domont J, Debaere T. A role for adjuvant RFA in managing hepatic metastases from gastrointestinal stromal tumors (GIST) after treatment with targeted systemic therapy using kinase inhibitors. Cardiovasc Intervent Radiol 2013; 37:132-9. [PMID: 23589213 DOI: 10.1007/s00270-013-0615-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2012] [Accepted: 03/08/2013] [Indexed: 12/17/2022]
Abstract
PURPOSE This study was designed to assess the role of radiofrequency ablation (RFA) in the multimodality management of gastrointestinal stromal tumors (GIST) in patients undergoing targeted tyrosine kinase inhibitor therapy (TKI) for liver metastases. METHODS Outcomes of 17 patients who underwent liver RFA for 27 metastatic GIST after TKI therapy, from January 2004 to March 2012, were retrospectively analyzed. Mean maximum tumor diameter was 2.5 ± 1 cm (range 0.9-4.5 cm). In seven patients (group A), RFA of all residual tumors was performed, with curative intent, and TKI therapy was discontinued. In five patients (group B), RFA of all residual tumors was performed upon achieving the best morphological response with TKI therapy, which was maintained after RFA. In another five patients (group C), RFA was performed on individual liver metastases which were progressive under TKI therapy. RESULTS All 27 targeted tumors were completely ablated, without local recurrence during the mean follow-up period of 49 months. No major complications occurred. Two minor complications were reported (11 %). Only two patients (both in group C) died at 20 and 48 months. Two-year progression-free survival (PFS) after RFA was 29 % in group A, 75 % in group B, and 20 % in group C. CONCLUSIONS RFA in patients, previously treated with TKI, is feasible and safe. Our data suggest that RFA is a useful therapeutic option in patients with metastatic GIST and should be performed at the time of best clinical response with patient maintained under TKI after the procedure.
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Affiliation(s)
- Antoine Hakimé
- Gustave Roussy Institute, 39 r Camille Desmoulins, 94805, Villejuif, France,
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17
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Tyrosine-kinase mutations in c-KIT and PDGFR-alpha genes of imatinib naïve adult patients with gastrointestinal stromal tumours (GISTs) of the stomach and small intestine: relation to tumour-biological risk-profile and long-term outcome. Clin Transl Oncol 2012; 14:619-29. [PMID: 22855146 DOI: 10.1007/s12094-012-0851-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Accepted: 11/21/2011] [Indexed: 12/11/2022]
Abstract
BACKGROUND The identification of activating mutations in either c-KIT cell surface growth factor receptor or platelet-derived growth factor receptor alpha (PDGFRA) has lead the way for the development of novel agents that selectively inhibit key molecular events in gastrointestinal stromal tumour (GIST) pathogenesis. The aim of this study was to investigate the role of c-KIT and PDGFRA gene mutations in primary resectable, imatinib naïve GISTs located in the stomach and small intestine. METHODS All adult patients with GIST located in either stomach or small intestine who underwent surgical resection without prior imatinib (Glivec) treatment were included. DNA extraction and mutational analysis were performed. Mutational analyses were performed for c-KIT (exons 9, 11, 13, and 17) and the PDGFRA genes (exons 12, 14 and 18). Clinical and pathological parameters were analyzed in relation to the mutations in c-KIT and PDGFRA. RESULTS A total of 38 patients who underwent surgery for GIST located in either the stomach (n = 24) or in the small intestines (n = 14) were included. Mutations were found in 31 of 38 (81.6 %) patients, with 24 (63.2 %) located in c-KIT and 7 (18.4 %) in the PDGRFA exons, respectively. Seven patients (18.4 %) were wildtype (WT). The most common mutation was in c-KIT exon 11. Incidentally found GISTs were significantly smaller (size >5 cm in 15 % for incidental vs. 71 % for symptomatic; OR of 13.4, 95 % CI 2.3-76.5; P = 0.001) and had lower mitotic rate (0 % for incidental vs. 44 % of the symptomatic; OR 0.52, 95 % CI 0.36-0.75; P = 0.005). Accordingly, the Fletcher grade was significantly better for incidental cases, with most having very low or low risk (85 %) in contrast to 19 of 25 (76 %) symptomatic cases showing moderate to high-risk features (OR 17.4, 95 % CI 2.98-101.7; P < 0.001). However, the distribution of c-KIT, PDGFRA and WT was not differently distributed between incidental and symptomatic GISTs. Long-term survival up to 25 years (median: 8 years) was best determined by Fletcher risk-score in the multivariate model (HR 14.1, 95 % CI 1.7-114.5; p = 0.013). CONCLUSIONS Long-term survival in resected GISTs of the stomach and small intestine is best determined by Fletcher risk-score. Mitotic activity appears related to tumour size and young age at onset. Mutational status did not influence the clinical or tumour-specific features in this cohort.
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Sandvik OM, Søreide K, Kvaløy JT, Gudlaugsson E, Søreide JA. Epidemiology of gastrointestinal stromal tumours: Single-institution experience and clinical presentation over three decades. Cancer Epidemiol 2011; 35:515-20. [DOI: 10.1016/j.canep.2011.03.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2010] [Revised: 02/27/2011] [Accepted: 03/11/2011] [Indexed: 02/08/2023]
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Horvath LE, Yordan E, Malhotra D, Leyva I, Bortel K, Schalk D, Mellinger P, Huml M, Kesslering C, Huml J. Multidisciplinary care in the oncology setting: historical perspective and data from lung and gynecology multidisciplinary clinics. J Oncol Pract 2011; 6:e21-6. [PMID: 21358946 DOI: 10.1200/jop.2010.000073] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2010] [Indexed: 12/12/2022] Open
Abstract
Multidisciplinary care refers to a practice in which physicians from multiple specialties attend to the same patient population. There are many advantages to the model, including reduced time to treatment, coordinated treatment plans, increased patient and physician satisfaction, and increased enrollment onto clinical trials. At Central Dupage Hospital, multidisciplinary clinics have been instituted in lung and gynecologic cancer. We describe the structure and operation of each clinic and highlight their considerable success in improving patient care.
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Affiliation(s)
- Laura Elise Horvath
- Department of Medicine, Division of Hematology Oncology, Loyola University Medical Center; Loyola Cancer Care and Research Center at Central Dupage Hospital; Central Dupage Hospital Multidisciplinary Lung Clinic; Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Rush University Medical Center, Central Dupage Physician Group; Radiation Oncology Consultants; Suburban Lung Associates, Winfield, IL
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Apostolopoulos DJ, Dimitrakopoulou-Strauss A, Hohenberger P, Roumia S, Strauss LG. Parametric images via dynamic 18F-fluorodeoxyglucose positron emission tomographic data acquisition in predicting midterm outcome of liver metastases secondary to gastrointestinal stromal tumours. Eur J Nucl Med Mol Imaging 2011; 38:1212-23. [PMID: 21400009 DOI: 10.1007/s00259-011-1776-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2010] [Accepted: 02/11/2011] [Indexed: 01/15/2023]
Abstract
PURPOSE (18)F-Fluorodeoxyglucose positron emission tomography (FDG PET) may underestimate viable tumour tissue in patients with gastrointestinal stromal tumours (GIST) treated with molecular targeted agents. The aim of the present study was to investigate the value of parametric images generated after dynamic data acquisition for the detection of active liver metastases. METHODS The analysis included 65 dynamic FDG PET studies in 34 patients with liver metastases from GIST who were treated with imatinib or sunitinib. Parametric images of intercept and slope were calculated by dedicated software using a voxel-based linear regression of time-activity data. Intercept images represent the tracer's distribution volume and the slope its overall metabolic turnover. All images were assessed visually and semi-quantitatively. Liver disease status was established 12 months after each PET study. Dichotomous variables of visual interpretation and various quantitative parameters were entered in a statistical model of linear discriminant analysis. RESULTS Visual analysis of slope images was more sensitive than the standard 1-h FDG uptake evaluation (70.6 vs 51.0%, p = 0.016) in detecting cases with liver disease progression (n = 51). Specificity did not differ. Combination of all variables in the discriminant analysis model correctly classified 87.7% of cases as progressive or non-progressive disease. Sensitivity was raised to 88.2%. CONCLUSION Parametric images of intercept and slope add a new dimension to the interpretation of FDG PET studies, by isolating visually and quantifying the perfusion and phosphorylation-dependent part of tracer uptake. In treated GIST patients, integration of this information with the 1-h uptake data achieves better characterization of hepatic lesions with respect to disease activity.
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Affiliation(s)
- Dimitris J Apostolopoulos
- Clinical Cooperation Unit Nuclear Medicine, German Cancer Research Center, DKFZ, Heidelberg, Germany.
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Demetri GD, von Mehren M, Antonescu CR, DeMatteo RP, Ganjoo KN, Maki RG, Pisters PWT, Raut CP, Riedel RF, Schuetze S, Sundar HM, Trent JC, Wayne JD. NCCN Task Force report: update on the management of patients with gastrointestinal stromal tumors. J Natl Compr Canc Netw 2010; 101:442. [PMID: 20457867 DOI: 10.1002/jso.21485] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The standard of care for managing patients with gastrointestinal stromal tumors (GISTs) rapidly changed after the introduction of effective molecularly targeted therapies involving tyrosine kinase inhibitors (TKIs), such as imatinib mesylate and sunitinib malate. A better understanding of the molecular characteristics of GISTs have improved the diagnostic accuracy and led to the discovery of novel immunomarkers and new mechanisms of resistance to TKI therapy, which in turn have resulted in the development of novel treatment strategies. To address these issues, the NCCN organized a task force consisting of a multidisciplinary panel of experts in the fields of medical oncology, surgical oncology, molecular diagnostics, and pathology to discuss the recent advances, identify areas of future research, and recommend an optimal approach to care for patients with GIST at all stages of disease. The task force met for the first time in October 2003 and again in December 2006 and October 2009. This supplement describes the recent developments in the field of GIST as discussed at the October 2009 meeting.
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Kamusella PC, Bethke A, Platzek I, Wiggermann P, Wissgott C, Stroszczynski C. [Minimally invasive management of metastases from gastrointestinal stromal tumors]. Radiologe 2010; 49:1132-5. [PMID: 19820910 DOI: 10.1007/s00117-009-1855-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Minimally invasive radiological procedures can lead to an improvement in the prognosis and the clinical symptoms in cases of metastases of gastro-intestinal stromal tumors (GIST) in the context of multimodal therapy concepts. In the context of interdisciplinary therapy decision-making radiofrequency ablation (RFA) and transarterial tumor embolization should be considered.
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Affiliation(s)
- P C Kamusella
- Radiologisches Institut, Universitätsklinikum Dresden, Fetscherstrasse 74, Dresden, Germany.
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Demetri GD, von Mehren M, Antonescu CR, DeMatteo RP, Ganjoo KN, Maki RG, Pisters PWT, Raut CP, Riedel RF, Schuetze S, Sundar HM, Trent JC, Wayne JD. NCCN Task Force report: update on the management of patients with gastrointestinal stromal tumors. J Natl Compr Canc Netw 2010; 8 Suppl 2:S1-41; quiz S42-4. [PMID: 20457867 PMCID: PMC4103754 DOI: 10.6004/jnccn.2010.0116] [Citation(s) in RCA: 814] [Impact Index Per Article: 54.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The standard of care for managing patients with gastrointestinal stromal tumors (GISTs) rapidly changed after the introduction of effective molecularly targeted therapies involving tyrosine kinase inhibitors (TKIs), such as imatinib mesylate and sunitinib malate. A better understanding of the molecular characteristics of GISTs have improved the diagnostic accuracy and led to the discovery of novel immunomarkers and new mechanisms of resistance to TKI therapy, which in turn have resulted in the development of novel treatment strategies. To address these issues, the NCCN organized a task force consisting of a multidisciplinary panel of experts in the fields of medical oncology, surgical oncology, molecular diagnostics, and pathology to discuss the recent advances, identify areas of future research, and recommend an optimal approach to care for patients with GIST at all stages of disease. The task force met for the first time in October 2003 and again in December 2006 and October 2009. This supplement describes the recent developments in the field of GIST as discussed at the October 2009 meeting.
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Abstract
Gastrointestinal stromal tumors (GIST) are the most common mesenchymal tumors of the gastrointestinal tract with malignant potential. Because of the lack of specific clinical manifestations, an accurate preoperative diagnosis of GIST is very difficult. In recent years, the pathogenesis of GIST has been gradually clarified, and their diagnosis and treatment have been greatly improved. Oncogenic mutation of the KIT receptor tyrosine kinase is found in the majority of patients with GIST. Immunohistochemical detection of markers such as CD117 is key to the diagnosis of GIST. Although combined therapy has been emphasized recently, radical surgical treatment is still the most effective option for GIST. Postoperative molecular targeted therapies, including neoadjuvant therapy and adjuvant therapy, can greatly improve the outcomes of patients with GIST. The development of imatinib offers new hope to patients with GIST.
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