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Background: Obesity is a known risk factor for cancer, and bariatric surgery is increasingly used in obese patients. The single anastomosis jejunal bypass (SASJ) is a newer bariatric procedure, but its efficacy and safety remain unclear, especially regarding its impact on cancer risk and management.
Methods: We present a case of a 62-year-old female with obesity who underwent SASJ six years prior and developed symptoms suggestive of gastric cancer. Despite initial challenges in diagnosis due to post-SASJ anatomy changes, a thorough evaluation led to the diagnosis of early-stage adenocarcinoma of the antrum.
Results: The patient underwent successful total gastrectomy with D2 lymph node dissection and Roux-en-Y esophagojejunostomy. Pathological analysis revealed a PT1 N0 Mx stage tumor with a signet ring cell appearance, highlighting the challenge of diagnosing and managing cancer in post-bariatric surgery patients.
Conclusion: This case underscores the importance of considering the impact of bariatric surgery on cancer diagnosis and treatment. Further research is needed to better understand the long-term effects of SASJ on cancer risk and management in obese patients.