Case report reveals cancer recurrence 14 years post endoscopic mucosal resection, highlighting assessment challenges.
INTRODUCTION: Carcinoma arising from a colonic diverticulum is extremely rare, with only 21 cases being reported in the literature. Accurate pathological assessment of lesions within diverticula is often challenging due to distortion or discontinuity of the muscularis mucosae, which may lead to misjudgment of invasion depth and inappropriate therapeutic decisions.
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Shimomura et al. (2026) studied this question.
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