title: Umbilical endometriosis.
abstract: Cutaneous endometriosis is a well known but rare phenomenon. We present a case of spontaneous umbilical endometriosis. The patient revealed a polypoid, brown-blue nodule within the umbilical depression with the typical history of monthly bleeding from the umbilicus. The differential diagnoses are summarized.
authors: Department of Dermatology, AK St. Georg, Hamburg, Germany.
authors: A M
authors: AM
authors: von Stemm
authors: W N
authors: WN
authors: Meigel
authors: P
authors: P
authors: Scheidel
authors: A
authors: A
authors: Gocht
mesh_terms: D000328:Adult; D004715:Endometriosis / Q000150:complications / Q000473:pathology*; D005260:Female; D006470:Hemorrhage / Q000209:etiology; D006801:Humans; D012871:Skin Diseases / Q000150:complications / Q000473:pathology*; D014472:Umbilicus