title: MRI appearance of prostatic stromal sarcoma in a young adult.
abstract: Prostatic stromal sarcoma (PSS) is quite rare. Herein, we describe magnetic resonance imaging (MRI) features of a PSS identified in a 26-year-old man with dysuria and hematuria. MRI clearly depicted the extent and multinodular appearance of the tumor, which was mainly located in the central zone of the prostate. The tumor appeared as a heterogeneously signal-hyperintense mass with a pseudocapsule on T2-weighted imaging. Contrast-enhanced T1-weighted MRI showed necrotic portions in the gradually enhanced solid mass, and diffusion-weighted imaging permitted the accurate assessment of the local extent of the tumor. Thus, the appearance on MRI was quite different from that of adenocarcinoma of the prostate.
authors.affiliation: Department of Radiology, Kawasaki Medical School, 577 Matsushima, Kurashiki City, Okayama, Japan. ttamada@med.kawasaki-m.ac.jp
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Tamada
authors.forename: Teruki
authors.initials: T
authors.lastname: Sone
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Miyaji
authors.forename: Yuji
authors.initials: Y
authors.lastname: Kozuka
authors.forename: Katsuyoshi
authors.initials: K
authors.lastname: Ito
mesh_terms: D000328:Adult; D003287:Contrast Media; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D019786:Gadolinium DTPA; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D011471:Prostatic Neoplasms / Q000175:diagnosis*; D017154:Stromal Cells / Q000473:pathology*
chemical_list: D003287:Contrast Media; D019786:Gadolinium DTPA