A case of intestinal endometriosis with stricture

The patient was a woman in her 40s who was referred to our hospital with chief complaints of constipation and abdominal pain during defecation. Colonoscopy at her previous doctor pointed out stricture in the sigmoid colon. Abdominal pain was characterized by aggravation during menstruation. A biopsy was performed from the reddened site as a differential diagnosis of metastatic tumor, intestinal endometriosis, etc. Abdominal and pelvic contrast-enhanced computed tomography revealed no obvious neoplastic lesions. Histopathological examination identified endometrial tissue in the biopsy specimen and reached the diagnosis of intestinal endometriosis. Reports of intestinal endometriosis with circumferential stenosis are rare.