Ileocaecal endometriosis presenting as intestinal obstruction

Endometriosis is characterized by the presence of endometrial tissue consisting of glands and/or stroma located outside the uterus. Involvement of the terminal ileum is extremely rare. Preoperative distinction of ileal endometriosis from other diseases of the ileocecal region is difficult in terms of clinical presentation, symptomatology, radiological appearance, and surgical and pathological findings. We report a case which was diagnosed as suspicious of malignancy and was having intestinal obstruction, but finally diagnosed as ileocaecal endometriosis by histopathological evaluation after resection of the involved segment.