title: Unusual MR findings in ovarian leiomyoma.
abstract: We report a rare case of ovarian leiomyoma with extensive edema in a 55-year-old woman. Magnetic resonance (MR) imaging revealed an ovarian mass with distinct portions of predominantly low intensity and predominantly high intensity on T2-weighted image. The portion with low signal showed weak enhancement on contrast study, and the portion with high intensity suggested extensive edema of fibrous stroma. Furthermore, the mass showed low signal intensity similar to that of the myometrium on diffusion-weighted image and yielded high values on apparent diffusion coefficient (ADC) map image. Extensive edema of ovarian leiomyoma shows unusual MR imaging findings that require careful interpretation.
authors.affiliation: Department of Imaging Diagnosis, Saitama Medical University, International Medical Center, Saitama, Japan. 8kozawa@saitama-med.ac.jp
authors.forename: Eito
authors.initials: E
authors.lastname: Kozawa
authors.forename: Kaiji
authors.initials: K
authors.lastname: Inoue
authors.forename: Junji
authors.initials: J
authors.lastname: Tanaka
authors.forename: Shiori
authors.initials: S
authors.lastname: Meguro
authors.forename: Masanori
authors.initials: M
authors.lastname: Yasuda
authors.forename: Keiichi
authors.initials: K
authors.lastname: Fujiwara
authors.forename: Fumiko
authors.initials: F
authors.lastname: Kimura
mesh_terms: D003937:Diagnosis, Differential; D004487:Edema / Q000209:etiology* / Q000473:pathology*; D005260:Female; D006801:Humans; D007889:Leiomyoma / Q000150:complications* / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008875:Middle Aged; D014594:Uterine Neoplasms / Q000150:complications* / Q000473:pathology*