A rare case report on rectus muscle endometriosis

This 2021 paper reports a rare case of rectus muscle endometriosis in a 30-year-old woman (P2L2A1) without prior surgery, who presented with a firm left iliac fossa abdominal wall mass that was painful around menstruation. CECT identified an irregular homogenously enhancing solid mass in the muscular plane, and the lesion was excised; histopathology confirmed endometriosis with endometrial glands and stroma plus hemosiderin-laden macrophages. The patient was followed for 2 years postoperatively with no recurrence, and the paper frames limitations as an isolated case experience rather than broader evidence. This paper is centrally about endometriosis — specifically rectus muscle (abdominal wall) endometriosis presenting as an extra-pelvic abdominal wall mass.

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