title: [MRI findings in a testicular epidermoid cyst: a case report].
abstract: A 21-year-old man was admitted with a painless mass in the left testis. Physical examination revealed a firm, small-finger sized, mass lesion with a smooth surface in the left testis. The ultrasonographic appearance was a hypoechoic lesion with an echogenic rim in the left testis. Magnetic resonance imaging (MRI) findings showed the echogenic rim to be a low-signal zone on both T1 and T2-weighted images. The center, on T2-weighted images, had a low signal intensity, with peripheral high signal intensity. Under a preoperative diagnosis of epidermoid cyst, the mass was resected surgically with preservation of the testis. Histopathological diagnosis confirmed an epidermoid cyst. Preoperative ultrasonographic and MRI findings suggested a benign lesion, thus permitting preservation of the testis.
authors.affiliation: Department of Urology, Kansai Medical University.
authors.forename: N
authors.initials: N
authors.lastname: Oguchi
authors.forename: H
authors.initials: H
authors.lastname: Kawamura
authors.forename: T
authors.initials: T
authors.lastname: Ohara
authors.forename: T
authors.initials: T
authors.lastname: Matsuda
mesh_terms: D000328:Adult; D004814:Epidermal Cyst / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D013733:Testicular Diseases / Q000175:diagnosis* / Q000601:surgery