title: MR imaging findings of mass-forming endosalpingiosis in both ovaries: a case report.
abstract: A 50-year-old postmenopausal woman, who underwent ultrasonography at a periodic medical checkup, was found to have bilateral ovarian masses. Pelvic magnetic resonance imaging (MRI) showed bilateral multilocular cystic ovarian masses. The cyst walls and septal structure demonstrated contrast enhancement. She underwent bilateral salpingo-oophorectomy. Microscopic examination revealed that the cysts were lined with cuboidal or columnar epithelial cells, and some of the cells were ciliated. The final histopathological diagnosis was endosalpingiosis. Endosalpingiosis is defined as the presence of ectopic ciliated epithelium, resembling the normal endosalpinx, without endometrial stroma. It rarely presents as a tumor-like mass on MRI.
authors.affiliation: Department of Radiology, Tottori Municipal Hospital, 1-1, Matoba, Tottori, Tottori, 680-8501, Japan, sachi785@hotmail.com.
authors.forename: Sachi
authors.initials: S
authors.lastname: Kaneda
authors.forename: Shinya
authors.initials: S
authors.lastname: Fujii
authors.forename: Kanae
authors.initials: K
authors.lastname: Nosaka
authors.forename: Chie
authors.initials: C
authors.lastname: Inoue
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Tanabe
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Matsuki
authors.forename: Toshihide
authors.initials: T
authors.lastname: Ogawa
mesh_terms: D002828:Choristoma / Q000175:diagnosis; D018291:Cystadenoma, Mucinous / Q000175:diagnosis; D003937:Diagnosis, Differential; D005187:Fallopian Tubes; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D010049:Ovarian Diseases / Q000473:pathology*; D010051:Ovarian Neoplasms / Q000175:diagnosis