title: An umbilical nodule due to endometriosis.
authors.forename: Olga A
authors.initials: OA
authors.lastname: Kerr
authors.forename: Megan
authors.initials: M
authors.lastname: Mowbray
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Tidman
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D004715:Endometriosis / Q000175:diagnosis* / Q000473:pathology; D005260:Female; D006801:Humans; D012871:Skin Diseases / Q000175:diagnosis* / Q000473:pathology; D014472:Umbilicus / Q000473:pathology*