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Case Report
Copyright: ©Author(s) 2026.
World J Gastrointest Surg. Jul 27, 2026; 18(7): 117966
Published online Jul 27, 2026. doi: 10.4240/wjgs.117966
Figure 1
Figure 1 Imaging features of a duodenal papillary tumor. A and B: Axial contrast-enhanced computed tomography shows an enhancing nodular lesion (1.80 cm × 1.80 cm) in the duodenal papilla region; C and D: Note the dilated biliary and pancreatic ducts (common hepatic duct: 1.50 cm) and the double duct sign; E and F: Gastroscopy reveals a tumor (1.50 cm × 1.50 cm) in the descending duodenum obscuring the nipple opening. The discrepancy between endoscopic (1.50 cm × 1.50 cm) and pathological (1.00 cm × 1.00 cm × 0.50 cm) tumor dimensions may be attributed to tissue shrinkage during formalin fixation, partial tissue loss from preoperative biopsy, and intraoperative manipulation.
Figure 2
Figure 2 Pathological findings of duodenal papillary adenocarcinoma. A: A gray-red solid mass (1.00 cm × 1.00 cm × 0.50 cm) at the duodenal papilla with a gray-white cut surface and moderate consistency, poorly demarcated from surrounding tissues. Attached organs include the stomach (8.00 cm × 6.50 cm × 4.00 cm), duodenum (length 27.00 cm), gallbladder (11.00 cm × 4.00 cm × 3.50 cm; rough mucosa, smooth serosa), and pancreas (7.50 cm × 6.00 cm × 2.00 cm; lobulated cut surface). No tumor invasion is observed in any organ; B: Papillary adenocarcinoma infiltrating the muscularis propria. No cancer infiltration is seen in the serosa or periserosal tissues.
Figure 3
Figure 3 Proposed multidisciplinary management pathway for people with human immunodeficiency virus undergoing abdominal oncologic surgery (e. g., pancreaticoduodenectomy). CT: Computed tomography; CEA: Carcinoembryonic antigen; CA19-9: Carbohydrate antigen 19-9; MRI: Magnetic resonance imaging; MRCP: Magnetic resonance cholangiopancreatography; PET-CT: Positron emission tomography-computed tomography; HIV: Human immunodeficiency virus; MDT: Multidisciplinary team; ART: Antiretroviral therapy; ECOG: Eastern Cooperative Oncology Group; BMI: Body mass index; DVT: Deep venous thrombosis.


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