ArticleJournal of surgical case reports2026
Rectal adenocarcinoma presenting as full-thickness prolapse with external haemorrhoids: case report.
Article in Journal of surgical case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
We present a case of a 51-year-old male with a colonic adenocarcinoma that presented as a full-thickness rectal prolapse with external haemorrhoids. This patient had no significant medical or surgical history and presented to the emergency department with a rectal prolapse which had become incarcerated and increasingly painful over the previous 2 weeks. A computed tomography (CT) abdomen and pelvis appeared benign, demonstrating a full-thickness rectal prolapse with no definite rectal mass. A colonoscopy was performed, revealing anterior rectal mucosal edema, fibrosis, and a possible mass. This prompted the patient to be taken to the operating room for a low anterior resection of the rectum and sigmoid. A 10.5 × 8.2 × 1.9 cm rectal mass was noted and pathology revealed colonic adenocarcinoma. This case highlights the importance of performing a colonoscopy in patients with atypical rectal prolapse, even when the physical exam and CT appears benign.
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