S2913 Chronic Left Lower Quadrant Pain and Iron Deficiency Anemia in a Young Lady Mimicking a Colonic Endometrioma: Consider Cavernous Hemangioma of the Sigmoid

This case report describes a young woman presenting with chronic left lower quadrant pain and iron deficiency anemia, symptoms that initially raised suspicion for a colonic endometrioma. Diagnostic evaluation revealed a cavernous hemangioma of the sigmoid colon rather than endometrial tissue, highlighting the importance of considering vascular anomalies in differential diagnoses for similar clinical presentations. The authors emphasize that while endometriosis is a common consideration for pelvic pain in young women, benign vascular lesions can mimic these symptoms and require distinct management strategies. This paper is centrally about endometriosis — specifically, it uses the condition as a primary diagnostic consideration to be ruled out when evaluating patients with unexplained pelvic pain and gastrointestinal bleeding.

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