title: Umbilical endometriosis.
abstract: We report two women who presented with a recurrent, mildly painful, bluish nodule in the umbilicus. Both patients complained of local tenderness and occasional bleeding that increased during menstruation. Neither patient had had previous pelvic surgery. Excision of the lesions revealed a primary umbilical endometriosis; in one case, a simultaneous laparoscopy showed a pelvic endometriosis. We review the current literature and discuss the possible etiopathogenesis and when a laparoscopy is indicated to diagnose a concomitant pelvic endometriosis. Umbilical endometriosis is a very rare disease but should be considered in the differential diagnosis of umbilical lesions.
authors.affiliation: Department of Obstetrics and Gynaecology, Kantonsspital Münsterlingen, 8596 Scherzingen, Switzerland.
authors.forename: F
authors.initials: F
authors.lastname: Frischknecht
authors.forename: L
authors.initials: L
authors.lastname: Raio
authors.forename: A
authors.initials: A
authors.lastname: Fleischmann
authors.forename: E
authors.initials: E
authors.lastname: Dreher
authors.forename: K P
authors.initials: KP
authors.lastname: Lüscher
authors.forename: M D
authors.initials: MD
authors.lastname: Mueller
mesh_terms: D000328:Adult; D004715:Endometriosis / Q000175:diagnosis / Q000473:pathology*; D005260:Female; D006470:Hemorrhage / Q000209:etiology; D006801:Humans; D010535:Laparoscopy; D008597:Menstrual Cycle; D008875:Middle Aged; D014472:Umbilicus