Endometriosis of the navel
This case report describes a 43-year-old woman presenting with cyclic bleeding from the umbilicus during menstruation. Clinical examination revealed a pigmented, firm nodule at the navel, and biopsy confirmed the presence of proliferative endometrial tissue within fibrous stroma, establishing a diagnosis of umbilical endometriosis. The patient underwent local excision of the lesion under local anesthesia, resulting in primary wound healing and resolution of symptoms without recurrence. This paper is centrally about endometriosis — specifically, it documents a rare presentation of extra-pelvic disease manifesting as cutaneous involvement of the navel.
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