A case of rectal bleeding caused by digestive endometriosis resembling colon cancer

Endoscopy · 2014 · vol. 46(S 01) , pp. E357–E358 · doi:10.1055/s-0034-1377378 · PMID:25198922 · W2323764131
article OA: bronze CC0 ⤵ 4 in-corpus citations
AI-generated summary by claude@2026-06, 2026-06-09

A 42-year-old woman with rectal bleeding presented with sigmoid colon thickening and narrowing resembling colon cancer, but biopsies were nondiagnostic.

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Abstract

A 42-year-old unmarried, nulliparous woman presented at our hospital with rectal bleeding. The patient had had iron deficiency anemia in the past. She had normal, regular menses with mild dysmenorrhea and had not taken hormonal drugs. Her physical examination was unremarkable. Colonoscopy revealed widespread polypoid mucosal thickening and luminal narrowing, along with erythema and edema, in the sigmoid colon. It was not possible to pass the endoscope beyond the lesion ([Fig. 1]). Multiple endoscopic biopsies were taken, but histopathologic examination was nondiagnostic. An abdominal computed tomography (CT) scan revealed eccentric thickening of the wall of the sigmoid colon ([Fig. 2]).

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Condition tags

mesh:D004715endometriosisdysmenorrhea

MeSH descriptors

Colonic Neoplasms Endometriosis Gastrointestinal Hemorrhage Sigmoid Diseases Adult Colonic Neoplasms Colonoscopy Diagnosis, Differential Endometriosis Endometriosis Female Gastrointestinal Hemorrhage Humans Rectum Sigmoid Diseases Sigmoid Diseases

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europepmc
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