title: Sister Mary Joseph's nodule: Malignant transformation of umbilical endometriosis.
authors.affiliation: Department of Dermatology, Minoh City Hospital, Osaka, Japan.
authors.forename: Hanako
authors.initials: H
authors.lastname: Koguchi-Yoshioka
authors.affiliation: Department of Plastic Surgery, Minoh City Hospital, Osaka, Japan.
authors.forename: Haruka
authors.initials: H
authors.lastname: Oshima
authors.affiliation: Department of Plastic Surgery, Minoh City Hospital, Osaka, Japan.
authors.forename: Eri
authors.initials: E
authors.lastname: Manago
authors.affiliation: Department of Plastic Surgery, Minoh City Hospital, Osaka, Japan.
authors.forename: Katsuki
authors.initials: K
authors.lastname: Kuwae
authors.affiliation: Department of Obstetrics and Gynecology, Minoh City Hospital, Osaka, Japan.
authors.forename: Mitsunori
authors.initials: M
authors.lastname: Shioji
authors.affiliation: Department of Obstetrics and Gynecology, Minoh City Hospital, Osaka, Japan.
authors.forename: Kazushige
authors.initials: K
authors.lastname: Adachi
authors.affiliation: Department of Pathology, Minoh City Hospital, Osaka, Japan.
authors.forename: Itsuko
authors.initials: I
authors.lastname: Nakamichi
authors.affiliation: Department of Surgery, Minoh City Hospital, Osaka, Japan.
authors.forename: Minako
authors.initials: M
authors.lastname: Hoshi
authors.affiliation: Department of Surgery, Minoh City Hospital, Osaka, Japan.
authors.forename: Kimimasa
authors.initials: K
authors.lastname: Ikeda
authors.affiliation: Department of Dermatology, Minoh City Hospital, Osaka, Japan.
authors.forename: Chiho
authors.initials: C
authors.lastname: Matsumoto