title: Ovarian fibroma (fibrothecoma) with extensive cystic degeneration: unusual MR imaging findings in two cases.
abstract: Two cases of ovarian fibroma (fibrothecoma) with extensive cystic degeneration are described. One case revealed a large multiloculated cystic mass with a small solid part. Each locule showed variable signal intensity on both T1- and T2-weighted magnetic resonance (MR) images. The other case revealed a parviloculated cystic mass with a small solid part. In both cases, the solid parts were located at the periphery of the mass and showed distinct low signal intensity on both T1- and T2-weighted MR images and slight enhancement. It should be noted that ovarian fibromas (fibrothecomas) with extensive cystic degeneration are a rare exception to the rule that solid components in a cystic adnexal mass imply malignancy.
authors.affiliation: Department of Radiology, Teikyo University School of Medicine, Ichihara Hospital, 3426-3 Anesaki, Ichihara, Chiba 299-0111, Japan.
authors.forename: Tohru
authors.initials: T
authors.lastname: Takeshita
authors.forename: Hideki
authors.initials: H
authors.lastname: Shima
authors.forename: Sonomi
authors.initials: S
authors.lastname: Oishi
authors.forename: Namio
authors.initials: N
authors.lastname: Machida
authors.forename: Kazuto
authors.initials: K
authors.lastname: Yamazaki
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Imamura
authors.forename: Katsuhiro
authors.initials: K
authors.lastname: Uchiyama
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003937:Diagnosis, Differential; D005260:Female; D005350:Fibroma / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000175:diagnosis* / Q000473:pathology