title: Adenofibroma of the endometrium protruding into the vaginal cavity: findings on transvaginal ultrasonography, MRI and CT.
abstract: Adenofibroma is a rare benign biphasic neoplasm that is classified into the mixed epithelial and mesenchymal tumor group. We report the case of a 42-year-old woman with adenofibroma of the endometrium protruding into the vagina. Transvaginal ultrasonography revealed the tumor as an intravaginal mass containing multiple cystic components. Magnetic resonance imaging (MRI) showed a heterogeneous high-intensity mass filling the vaginal cavity on T2-weighted imaging, with a low-contrast enhanced septum identified within the mass on gadolinium-enhanced, T1-weighted imaging. Contrast-enhanced computed tomography (CT) showed a heterogeneous low-attenuating multicystic mass filling the vaginal cavity. Although preoperative diagnosis of this rare tumor is very difficult, the combination of MRI, CT, and ultrasonography offers a useful diagnostic tool.
authors.affiliation: Division of Obstetrics and Gynecology, Department of Reproductive and Developmental Medicine, Akita University School of Medicine, Akita, Japan. konishi@momo.so-net.ne.jp
authors.forename: Yoshitomo
authors.initials: Y
authors.lastname: Konishi
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Sato
authors.forename: Toshio
authors.initials: T
authors.lastname: Fujimoto
authors.forename: Hidenori
authors.initials: H
authors.lastname: Tanaka
authors.forename: Osamu
authors.initials: O
authors.lastname: Takahashi
authors.forename: Toshinobu
authors.initials: T
authors.lastname: Tanaka
mesh_terms: D000232:Adenofibroma / Q000000981:diagnostic imaging*; D000328:Adult; D016889:Endometrial Neoplasms / Q000000981:diagnostic imaging*; D005260:Female; D006651:Histocytochemistry; D006801:Humans; D008279:Magnetic Resonance Imaging; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D014621:Vagina / Q000000981:diagnostic imaging* / Q000473:pathology