Observational Study Open Access
Copyright ©The Author(s) 2025. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Oncol. Jul 24, 2025; 16(7): 107495
Published online Jul 24, 2025. doi: 10.5306/wjco.v16.i7.107495
Bridging the deficit: Assessing knowledge gaps in thyroid cancer management amongst physicians in the Democratic Republic of Congo
John Bukasa-Kakamba, Manasse Bukasa Mutombo, Pascal Bayauli, Gael Menga, Cute Diazabakana, Jean-René M’Buyamba-Kabangu, Department of Endocrinology and Metabolic Diseases, University of Kinshasa, Kinshasa 999069, Congo
Ayrton I Bangolo, Department of Hematology and Oncology, John Theurer Cancer Center at Hackensack University Medical Center, Hackensack, NJ 07601, United States
Nickson Poka, Department of Endocrinology, National Diabetes Control Program, Kinshasa 999069, Congo
Christian Bompongo, Department of Endocrinology, Diabetology and Nutrition, Ibn Rochd University Hospital, Casablanca 20100, Morocco
Shruti Wadhwani, Nikita Wadhwani, Department of Internal Medicine, Hackensack Meridian Health Palisades Medical Center, North Bergen, NJ 07047, United States
Isis Kapinga Kalambayi, Department of Ophthalmology, Avignon Hospital Center, Avignon 84000, France
Pierre Fwelo, Department of Epidemiology, Human Genetics, and Environmental Sciences, UTHealth School of Public Health, Houston, TX 77030, United States
Andy Sifa, Department of Internal Medicine, Kimbuala Mother and Children’s Hospital, Kinshasa 999069, Congo
Guy Kingebeni, Department of Pathology, University of Kinshasa, Kinshasa 999069, Congo
Mbuyi Mulumba, Department of Internal Medicine, Central Military Hospital, Kinshasa 999069, Congo
Djo Mambu, Department of Internal Medicine, Makala General Reference Hospital, Kinshasa 999069, Congo
Richard Mfuke Bokondo, Department of Internal Medicine, Ndjili General Reference Hospital, Kinshasa 999069, Congo
ORCID number: Ayrton I Bangolo (0000-0002-2133-2480).
Co-first authors: John Bukasa-Kakamba and Ayrton I Bangolo.
Author contributions: Bukasa-Kakamba J and Bangolo AI contributed equally to this manuscript as co-first authors. Bukasa-Kakamba J, Bangolo AI, Poka N, Bompongo C, Wadhwani S, Wadhwani N, Kalambayi IK, Mutombo MB, Fwelo P, Bayauli P, Menga G, Sifa A, Diazabakana C, Kingebeni G, Mulumba M, Mambu D, and Bokondo RM wrote and edited the manuscript; M’Buyamba-Kabangu JR revised and approved the final version; all authors certify that they have contributed sufficiently towards data analysis and manuscript preparation. All authors have reviewed the final manuscript version and approves it for publication.
Institutional review board statement: The need for institutional review board approval was waived because no identifiable subject related data was used in the study. All responses obtained from the participating physicians were de-identified.
Informed consent statement: Informed consent was obtained from all physicians who participated in this study.
Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article.
STROBE statement: The authors have read the STROBE Statement-checklist of items, and the manuscript was prepared and revised according to the STROBE Statement-checklist of items.
Data sharing statement: The original contributions presented in this study are included in the article. Further inquiries can be directed to the corresponding author(s).
Open Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Ayrton I Bangolo, MD, Department of Hematology and Oncology, John Theurer Cancer Center at Hackensack University Medical Center, No. 92 2nd Street, Hackensack, NJ 07601, United States. ayrtonbangolo@yahoo.com
Received: March 25, 2025
Revised: April 21, 2025
Accepted: June 4, 2025
Published online: July 24, 2025
Processing time: 119 Days and 21 Hours

Abstract
BACKGROUND

Thyroid cancer incidence is rising globally, including the Democratic Republic of Congo (DRC). Despite its increasing incidence, limited data exist on physicians’ knowledge of thyroid cancer management in the DRC.

AIM

To evaluate the knowledge levels of Congolese physicians regarding the diagnosis and treatment of thyroid nodules and cancers, and to identify existing gaps and areas for improvement.

METHODS

A descriptive cross-sectional study was conducted from June to August 2024, involving 369 physicians practicing in healthcare facilities across Kinshasa, DRC. Participants were selected using a multi-stage sampling method. Data were collected via a structured questionnaire covering thyroid cancer epidemiology, diagnostic methods, treatment approaches, and prognosis. Data were analyzed using SPSS version 25, employing descriptive and inferential statistics, with a P value ≤ 0.05 being considered as statistically significant.

RESULTS

Overall response rate was 96.1%. Of all participants, 68% were female and 32% were male physicians. General practitioners constituted 84.8% of respondents, with an average age of 34 years. While 53.7% demonstrated adequate knowledge of hypothyroidism management post-thyroidectomy and 61.2% identified the approach for hypoparathyroidism, only 5.1% recognized the need for radiotherapy in metastatic thyroid cancer cases. Awareness of anaplastic thyroid cancer treatment was limited (6.5%), and 90.2% of physicians were unfamiliar with the surgical complications. Moderate understanding was noted in diagnostic protocols, with 44.2% correctly identifying repeat fine-needle aspiration timing in Bethesda I cases. Knowledge of molecular genetics, recurrence risks, and metastasis patterns was remarkably low.

CONCLUSION

This study highlights significant knowledge gaps among Congolese physicians regarding thyroid cancer management, especially about advanced treatment modalities and molecular genetics. Targeted educational programs and improved access to diagnostic tools are critical to bridging these deficits. Addressing these gaps can enhance the quality of thyroid cancer care and align clinical practices in the DRC with global standards.

Key Words: Thyroid cancer; Democratic Republic of Congo; Physician survey; Thyroid neoplasm; Questionnaire

Core Tip: Significant knowledge gaps regarding thyroid cancer management exist amongst Congolese physicians despite a marked increase in incidence of thyroid cancer. We surveyed 369 physicians in the Democratic Republic of Congo using a structured questionnaire and discovered remarkable deficits in proficiency regarding available molecular diagnostics and advanced treatment modalities. Moderate understanding was noted in certain domains. Nevertheless, only 6.5% physicians were aware of anaplastic thyroid cancer treatment algorithm, and 5.1% recognized the need for radiotherapy in metastatic cases. This study, therefore, underscores the need for implementation of actionable educational initiatives amongst physicians in the Democratic Republic of Congo to optimize thyroid cancer care.


  • Citation: Bukasa-Kakamba J, Bangolo AI, Poka N, Bompongo C, Wadhwani S, Wadhwani N, Kalambayi IK, Mutombo MB, Fwelo P, Bayauli P, Menga G, Sifa A, Diazabakana C, Kingebeni G, Mulumba M, Mambu D, Bokondo RM, M’Buyamba-Kabangu JR. Bridging the deficit: Assessing knowledge gaps in thyroid cancer management amongst physicians in the Democratic Republic of Congo. World J Clin Oncol 2025; 16(7): 107495
  • URL: https://www.wjgnet.com/2218-4333/full/v16/i7/107495.htm
  • DOI: https://dx.doi.org/10.5306/wjco.v16.i7.107495

INTRODUCTION

Thyroid cancer, though constituting approximately 1% of all cancers worldwide, has seen a notable increase in incidence over recent decades[1]. This trend has also been noted in the Democratic Republic of Congo (DRC) as thyroid cancer cases have risen significantly[1]. Nonetheless, comprehensive data on the epidemiology, management, and outcomes of thyroid nodules and cancers within the country is presently scarce. This gap underscores the need for focused research to inform and enhance clinical practices pertaining to thyroid cancer management. Effective management of thyroid nodules and cancers is contingent upon healthcare providers’ proficiency in employing current diagnostic and therapeutic protocols. In many African nations, including the DRC, the availability and implementation of standardized guidelines for thyroid disease management are inconsistent[2]. This inconsistency can lead to variations in patient care and outcomes, highlighting the critical need for evaluating and bolstering physicians’ knowledge in this domain.

Previous studies in regions such as the Middle East and Africa have identified disparities in clinical practice patterns concerning thyroid nodule management[3,4]. However, specific data pertaining to Congolese physicians’ approaches remain scarce. Understanding these practices is essential, given the unique healthcare challenges and resource constraints in the DRC. Such insights can guide the development of tailored interventions to improve diagnostic accuracy and treatment efficacy. A descriptive cross-sectional study was conducted between June and August 2024 to assess the knowledge levels of Congolese physicians regarding the management of thyroid nodules and cancers. This study aimed to identify existing knowledge gaps, evaluate adherence to established clinical guidelines, and determine the need for targeted educational initiatives within the medical community. Through our study findings, we anticipate to provide a foundational understanding of current clinical practices in the DRC. By elucidating areas requiring improvement, the study seeks to inform policy decisions and educational programs, ultimately striving to enhance patient outcomes in thyroid disease management across the nation.

MATERIALS AND METHODS
Study type

This was a descriptive cross-sectional study designed to evaluate the knowledge level of Congolese physicians on the management of thyroid nodules and cancers in the DRC from June to August 2024.

Sampling

Statistical units: The study population consisted of practicing physicians in healthcare facilities across the DRC.

Sample size estimation: The sample size was calculated using the formula for estimating a proportion: N = Z2 × p × (1 - p)/E2, where p = 0.5 (assumed proportion of respondents with a high level of knowledge, as this value is unknown in the DRC), Z = 1.96 (95% confidence level for a two-tailed test), E = 0.05 (margin of error). This calculation yielded a minimum sample size of 384 participants.

Sampling technique: Sampling was conducted in three stages: (1) First stage: All four districts of Kinshasa (Tshangu, Funa, Mont-Amba, and Lukunga) were purposely selected; (2) Second stage: Four healthcare facilities per district were randomly selected from a list of all facilities, considering budgetary constraints; and (3) Third stage: Available healthcare providers in the selected facilities were interviewed.

Parameters of interest

The data collection sheet included parameters related to the epidemiology of thyroid nodules and cancers, thyroid gland physiology, diagnostic methods, pathophysiology, therapeutic approaches, and prognosis. A scoring system was used to assess knowledge levels: 90-100: Very good knowledge; 70-80: Good knowledge; 50-60: Average knowledge; 30-40: Poor knowledge; 10-20: Very poor knowledge.

Data collection technique

Data were collected using an ad hoc questionnaire. Upon survey completion, the data were directly sent to a central database managed by the principal investigator and two group members.

Statistical analysis

Collected data were entered into Epidata 3.1 and analyzed using SPSS version 25. Descriptive statistics were used to assess and present the knowledge levels of physicians across different survey items. Categorical variables were presented as relative frequencies, while quantitative variables were summarized using measures of central tendency and dispersion. mean ± SDs were reported for normally distributed variables, while medians and interquartile ranges were used for non-normally distributed variables.

RESULTS

Out of the 384 expected participants, 369 agreed to take part in the study, representing a response rate of 96.1%. Of all the consenting participants, 68% were female, and 32% were male physicians with an average age of 34 years. 313 participants (84.8%) were general practitioners, and 56 were specialists (15.2%), with public health being the most represented specialty. The survey conducted in the DRC highlights significant gaps in local physicians’ knowledge of thyroid cancer. Table 1 summarizes the general knowledge of respondents. While a majority of respondents correctly identified that thyroid cancer predominantly affects women (74%), there was less awareness of critical clinical aspects, such as the most common type of thyroid cancer (40.4%) and its associated risk factors (33.1%). Only about half of the participants were aware of the age group most at risk (52.6%) and the most common treatment modalities (51.2%). These subpar estimates call for rigorous training and continuing medical education (CME) services to improve the understanding of fundamental epidemiological and clinical features of thyroid cancer among healthcare providers.

Table 1 Respondents’ knowledge of thyroid cancer, n (%).
Question
Correct answer
Incorrect answer
Total
Most affected gender by thyroid cancer273 (74)96 (26)369
Age group most at risk for developing thyroid cancer194 (52.6)175 (47.4)369
Most common type of thyroid cancer149 (40.4)220 (59.6)369
Risk factors for thyroid cancer122 (33.1)247 (66.9)369
Most common treatment for thyroid cancer189 (51.2)180 (48.8)369
Type of thyroid cancer associated with multiple endocrine neoplasia162 (43.9)207 (56.1)369
Most aggressive type of thyroid cancer167 (45.3)202 (54.7)369
Most common symptom of thyroid cancer244 (66.1)125 (33.9)369
Factors involved in the etiology of thyroid cancer189 (51.2)180 (48.8)369
Familial forms associated with medullary thyroid cancer150 (40.7)219 (57.3)369
Risk posed by elevated TSH levels in the context of a thyroid nodule179 (48.5)190 (51.5)369
Thyroid cancer associated with the use of GLP-1 analogs109 (29.5)260 (70.5)369
Factor most associated with thyroid cancer in patients with a thyroid nodule160 (43.4)209 (56.6)369
Link between iodine deficiency and thyroid cancer222 (60.2)147 (39.8)369
Tumor suppressor gene P53 mutation and thyroid autoimmunity1 (0.3)368 (99.7)369
Thyroid cancer and receptor mutations91 (24.7)278 (75.3)369
Genetic mutations in differentiated thyroid cancers compared to anaplastic type259 (70.2)110 (29.8)369
Histological type of thyroid cancer with the highest recurrence rate78 (21.1)291 (78.9)369
Factors associated with an increased risk of recurrence in thyroid cancer patients153 (41.5)216 (58.5)369
Organ most commonly affected by distant metastases in thyroid cancer154 (41.7)215 (58.3)369
Factors associated with poor prognosis in thyroid cancer patients35 (9.5)334 (90.5)369
Most common cause of death in thyroid cancer patients107 (31.1)262 (68.9)369

Knowledge of more specialized topics, such as the genetic and molecular basis of thyroid cancer, was particularly limited. For example, only 0.3% of respondents were aware of the relationship between the P53 gene mutation and thyroid autoimmunity, and less than a quarter (24.7%) identified the association between receptor mutations and thyroid cancer. Similarly, understanding of familial and syndromic associations, such as medullary thyroid cancer linked to multiple endocrine neoplasia syndromes, was also limited at 43.9%. This indicates a broader challenge in integrating advances in molecular oncology into clinical practice in resource-limited settings, where access to diagnostic tools and advanced therapeutics could also be constrained.

Despite aforementioned knowledge gaps, some areas showed acceptable levels of awareness. Over 66% of respondents correctly identified the most common symptom of thyroid cancer, and 60.2% recognized the role of iodine deficiency in its etiology. However, less than half were aware of factors contributing to recurrence risk (41.5%) and distant metastases (41.7%). Furthermore, only 31.1% correctly identified the most common cause of death in thyroid cancer patients, underscoring an overall need for targeted educational interventions to enhance the understanding of diagnostic, therapeutic and prognostication tools to improve outcomes for thyroid cancer patients in the DRC.

Table 2 summarizes respondents’ ability to work up a suspected thyroid malignancy. While most respondents correctly identified the recommended initial hormonal workup (66.1%) and tools for confirming a thyroid cancer diagnosis (69.4%), knowledge of follow-up evaluation after surgery (7%), and European Thyroid Imaging Reporting and Data System (EU-TIRADS) scoring for fine-needle aspiration (7%) was notably deficient. Similarly, only 5.4% of respondents recognized Bethesda scores that are indicative of immediate surgery. Knowledge about first-line imaging for thyroid nodules was nearly evenly split, with 49.3% answering correctly. Encouragingly, the majority of respondents demonstrated an understanding of diagnostic tools for detecting metastases or recurrence (59.6%).

Table 2 Respondents’ workup of thyroid cancer, n (%).
Question
Correct answer
Incorrect answer
Total
Initial hormonal workup in the case of a thyroid nodule244 (66.1)125 (33.9)369
Follow-up evaluation of operated thyroid cancer26 (7)343 (93)369
EU-TIRADS scores indicating fine-needle aspiration26 (7)343 (93)369
Bethesda scores immediately suggesting surgery20 (5.4)349 (94.6)369
First-line imaging for thyroid nodules182 (49.3)187 (50.7)369
Diagnostic tools for metastases or recurrence of thyroid cancer220 (59.6)149 (40.4)369
Confirmation of thyroid cancer diagnosis256 (69.4)113 (30.6)369

Table 3 summarizes the respondents’ ability to manage thyroid malignancy. While 53.7% of respondents demonstrated adequate knowledge in managing hypothyroidism post-thyroidectomy, and 61.2% correctly identified the approach to hypoparathyroidism, only a small subset (5.1%) was aware of the types of thyroid cancer requiring radiotherapy after surgery in the presence of metastases. Similarly, only 6.5% of participants knew the correct treatment for anaplastic thyroid cancer, underscoring a substantial lack of awareness about managing aggressive forms of the disease. Additionally, most physicians (90.2%) were unfamiliar with the complications associated with thyroid carcinoma surgery, necessitating implementation of optimal surgical education and training in this domain.

Table 3 Respondents’ management of thyroid cancer, n (%).
Question
Correct answer
Incorrect answer
Total
Time for repeat fine-needle aspiration in the case of Bethesda 1163 (44.2)206 (55.8)369
Complications of thyroid carcinoma surgery36 (9.8)333 (90.2)369
Types of thyroid cancer requiring radiotherapy after surgery in the presence of metastases19 (5.1)350 (94.9)369
Management of hypothyroidism post-thyroidectomy198 (53.7)171 (46.3)369
Management of hypoparathyroidism post-thyroidectomy226 (61.2)143 (38.8)369
Treatment of anaplastic thyroid cancer24 (6.5)345 (93.5)369
Stopping levothyroxine before iodine uptake for detecting metastases222 (60.2)147 (39.8)369
EU-TIRADS grades indicating surgery without fine-needle aspiration results175 (47.4)194 (52.6)369
True or false: Medullary thyroid cancer is sensitive to iodine and can be treated with it166 (45)203 (55)369
Organs most commonly affected by metastases in thyroid carcinoma19 (5.1)350 (94.9)369

The findings also highlight areas where physicians exhibited moderate understanding, such as the timing for repeat fine-needle aspiration in Bethesda 1 cases (44.2% correct), and recognizing that levothyroxine should be stopped before iodine uptake to detect metastases (60.2% correct). However, the overall knowledge of metastasis patterns was poor, with only 5.1% identifying the most commonly affected organs. Misconceptions persisted regarding EU-TIRADS grades that necessitate surgery without fine-needle aspiration results (47.4% correct) and the iodine sensitivity of medullary thyroid cancer (45% correct). These results suggest a pressing need for targeted educational initiatives to improve physicians’ competence in the management and treatment of thyroid cancer in the DRC.

DISCUSSION

A survey conducted among 369 physicians in the DRC, with a 96.1% response rate, revealed substantial gaps in knowledge about thyroid cancer. Participants, predominantly general practitioners (84.8%) with an average age of 34 years, displayed limited understanding of critical clinical and molecular aspects of thyroid cancer. While many recognized that the disease predominantly affects women (74%) and identified iodine deficiency as a risk factor (60.2%), awareness of the most common type of thyroid cancer (40.4%), its associated risk factors (33.1%), and recurrence contributors (41.5%) was insufficient. Knowledge of advanced topics, such as genetic mutations and familial syndromes like multiple endocrine neoplasia, was particularly subpar. Management practices also highlighted deficiencies, with only 6.5% aware of treatments for anaplastic thyroid cancer and 5.1% recognizing when radiotherapy is required for metastatic cases. Despite some promising awareness in hypothyroidism (53.7%) and hypoparathyroidism (61.2%) management post-thyroidectomy, a lack of understanding in follow-up evaluations, surgical complications, and EU-TIRADS scoring emphasizes the need for targeted educational initiatives to enhance diagnostic and treatment competencies for thyroid cancer in the DRC.

Significant gaps in physicians’ knowledge were also noted in domains involving recognition of the most common type of thyroid cancer and its associated risk factors. This finding aligns with global observations that, despite the increasing incidence of thyroid cancer, there remains a deficiency in comprehensive understanding among healthcare providers. For instance, the American Association of Clinical Endocrinologists and the American College of Endocrinology have emphasized the need for enhanced education on thyroid carcinoma management due to observed knowledge gaps[5]. Similarly, the European Society for Medical Oncology has noted the scarcity of randomized clinical trial data on thyroid cancer management, which may contribute to inconsistencies in clinical practice[6].

The DRC survey also highlights that only about half of the participants were aware of the age group most at risk for cancer and the most common modalities available for treatment. This is concerning, as standardized management guidelines, such as those provided by the American Association of Clinical Endocrinologists and the American Association of Endocrine Surgeons, are designed to assist physicians in weighing the benefits and risks of available diagnostic and therapeutic options[5]. The lack of adherence to such guidelines in the DRC underscores the need for development of targeted educational initiatives aimed at bettering the understanding of fundamental thyroid cancer related concepts amongst healthcare providers. Addressing these knowledge gaps is crucial for the effective management of thyroid cancer, particularly in regions with limited resources. Awareness regarding the genetic and molecular underpinnings of thyroid cancer was limited; only 0.3% recognized the link between P53 gene mutations and thyroid autoimmunity, and 24.7% identified receptor mutations that are implicated in the etiopathogenesis of thyroid malignancies. This gap is particularly significant given the widespread prevalence of BRAF, RET/PTC, and RAS mutations in thyroid cancers and subsequent implications on diagnostic and treatment strategies[7-9]. The deficiency in knowledge may stem from limited access to advanced molecular testing and a lack of integration of molecular oncology into medical education within resource-constrained settings.

Furthermore, the study revealed that only 43.9% of respondents were aware of the association between medullary thyroid cancer and multiple endocrine neoplasia syndromes. This is concerning, as comprehension of familial syndromes is crucial for timely detection of malignancies. Since resource-abundant regions have superior patient outcomes owing to the presence of established protocols for genetic counseling and thyroid cancer testing, educational measures need to be implemented in resource-scarce settings to improve genetic literacy and facilitate delivery of optimal medical care to these patients[10,11].

Despite these gaps, there were areas of moderate awareness; 66.1% of physicians correctly identified the most common symptom of thyroid cancer, and 60.2% recognized iodine deficiency as a significant etiological factor. Iodine deficiency is a well-established risk factor for thyroid disorders, including cancer[12-16]. However, less than half of the respondents were knowledgeable about factors contributing to recurrence risk (41.5%) and distant metastases (41.7%), indicating a need for comprehensive education on disease progression and management.

The survey results indicate that while a majority of respondents correctly identified the importance of initial hormonal workup (66.1%) and tools for confirming a thyroid cancer diagnosis (69.4%), there were notable deficiencies in knowledge regarding follow-up evaluations after surgery (7%) and the application of the EU-TIRADS for fine-needle aspiration (7%). These findings align with existing literature, which emphasizes the critical role of structured reporting systems like EU-TIRADS and the Bethesda system in standardizing the assessment and management of thyroid nodules. Studies have demonstrated a significant correlation between TIRADS classifications and Bethesda cytopathological results, underscoring the importance of familiarity with these systems for accurate diagnosis and treatment planning[17-19]. The low awareness of EU-TIRADS among respondents suggests a pressing need for targeted educational initiatives to bridge this knowledge gap.

Furthermore, only 5.4% of respondents recognized Bethesda scores that immediately indicate surgery, and knowledge about first-line imaging for thyroid nodules was nearly evenly split, with 49.3% answering correctly. Encouragingly, a majority demonstrated an understanding of diagnostic tools for detecting metastasis or recurrence (59.6%). These observations are consistent with studies highlighting the effectiveness of the Bethesda system in guiding clinical management of thyroid nodules[20-23]. The mixed responses regarding first-line imaging reflect ongoing discussions in the literature about optimal imaging modalities and follow-up protocols post-thyroidectomy[24]. Collectively, these findings emphasize the necessity for comprehensive training programs to enhance physicians’ proficiency in utilizing standardized classification systems and imaging techniques, thereby improving patient outcomes in thyroid cancer management.

The observed deficiencies in Congolese physicians’ knowledge regarding the management of thyroid cancer, particularly in recognizing indications for postoperative radiotherapy in metastatic cases (5.1%) and appropriate treatment protocols for anaplastic thyroid cancer (6.5%), are consistent with challenges reported in other low- and middle-income countries. A study by Penna et al[25] highlighted the complexities in treating radioiodine-refractory thyroid cancer in developing regions, emphasizing the need for comprehensive education and resource allocation to manage aggressive thyroid malignancies effectively. The limited awareness of surgical complications associated with thyroid carcinoma among 90.2% of respondents underscores a critical gap in surgical training. This finding aligns with the African Head and Neck Society’s guidelines, which advocate for the integration of modern, cost-effective techniques to enhance thyroid disorder management in developing countries[26]. Implementing such guidelines could mitigate surgical risks and improve patient outcomes.

Moderate understanding in areas such as the timing for repeat fine-needle aspiration in Bethesda I cases (44.2% correct) and the cessation of levothyroxine before iodine uptake studies (60.2% correct) reflects a broader issue of inconsistent guideline adherence. The overall poor knowledge of metastasis patterns, with only 5.1% correctly identifying commonly affected organs, and misconceptions about the iodine sensitivity of medullary thyroid cancer (45% correct), are concerning. The European Society for Medical Oncology has noted that the scarcity of randomized clinical trial data on thyroid cancer management contributes to variability in clinical practices, underscoring the necessity for standardized protocols to guide physicians[27].

The study’s strengths lie in its comprehensive approach to evaluating the knowledge of Congolese physicians on thyroid cancer management, utilizing a robust sample size with a high response rate of 96.1%. The inclusion of physicians from both general practice and specialized fields enables broad representation of the medical community, capturing diverse perspectives and practices. Furthermore, the use of a structured questionnaire and validated data analysis tools (Epidata 3.1 and SPSS version 25) enhances the accuracy and reliability of findings. The study’s focus on specific knowledge areas, such as surgical complications, molecular understanding, and guideline adherence, provides actionable insights to inform targeted educational interventions. However, there are notable limitations. The study’s cross-sectional design limits its ability to establish causality or assess changes in knowledge over time. The reliance on self-reported data, combined with the absence of objective measures to corroborate knowledge, may have introduced reporting bias, as respondents might have overestimated their level of knowledge. Furthermore, the exclusive sampling of patients in an urban setting may restrict the generalizability of our results. The geographical focus on Kinshasa may not fully represent the knowledge levels of physicians in rural or underserved areas of the DRC, where healthcare resources and training opportunities differ significantly. Future research should include populations from rural and semi urban areas to ensure broader representation of nationwide trends.

The overall findings underscore a pressing need for targeted educational interventions to enhance the understanding of thyroid cancer’s molecular genetics, familial associations, and progression among physicians in the DRC. We believe that the universal incorporation of thyroid cancer management modules into the training curriculum could enhance physicians’ knowledge of thyroid disorders. Trainees should be offered opportunities to participate in CME programs tailored to reflect national trends in thyroid cancer epidemiology and management. Online courses, containing synoptic overviews on relevant topics in the form of case studies, interactive videos, clinical briefings, quizzes, and coupled with in-person workshops would provide a conducive framework for training physicians on this subject matter. Training programs should consider harnessing the power of social media as a tool for professional development, peer learning, and physician education. Social media platforms can help facilitate interactive case discussions and peer-based learning. Access to accredited CME platforms dedicated to thyroid cancer management. Implementing CME programs and enhancing access to diagnostic tools could help bridge existing knowledge gaps, ultimately contributing to improved patient outcomes. Such initiatives are essential for aligning clinical practices in the DRC with global standards in thyroid cancer management.

CONCLUSION

In conclusion, this study highlights significant gaps in the knowledge of Congolese physicians regarding the management of thyroid nodules and cancers, particularly in areas involving advanced treatment strategies, molecular genetics, and surgical complications. Despite these gaps, moderate awareness was noted in basic diagnostic protocols and some aspects of disease etiology. The findings underscore an urgent need for development of targeted educational initiatives and continuous medical education activities to bridge these knowledge deficits. Enhancing access to up-to-date diagnostic tools and integrating evidence-based guidelines into practice can improve diagnostic accuracy, treatment planning, and overall patient outcomes. By addressing these challenges, the DRC has the potential to align its clinical practices with global standards and ensure better care for thyroid cancer patients within the country.

Footnotes

Provenance and peer review: Invited article; Externally peer reviewed.

Peer-review model: Single blind

Specialty type: Oncology

Country of origin: United States

Peer-review report’s classification

Scientific Quality: Grade B, Grade B

Novelty: Grade B, Grade B

Creativity or Innovation: Grade C, Grade C

Scientific Significance: Grade B, Grade B

P-Reviewer: Ebrahim NA S-Editor: Wu S L-Editor: A P-Editor: Zhang XD

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