Enteric endometriosis: A report of four cases.

This report details four cases of colorectal endometriosis, emphasizing that diagnosis can be relatively straightforward through careful history taking regarding menstrual-related symptoms and imaging. The affected sites included the rectosigmoid junction in three patients and the sigmoid colon in one, with radiological findings showing irregular wall thickening and narrowing resembling a shed snake skin. Endoscopic evaluation often revealed significant pain during insertion and minor mucosal changes, while one case diagnosed via endoscopic ultrasound showed high-echoic bowel wall thickening and destruction of layer structure. Three patients underwent partial colectomy, which histologically confirmed ectopic endometrial tissue, whereas one patient received hormonal therapy. This paper is centrally about endometriosis — specifically the clinical presentation, diagnostic imaging features, and surgical confirmation of deep infiltrating disease within the large intestine.

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