title: Case of mediastinal seminoma with testicular microlithiasis.
abstract: Testicular microlithiasis is a rare condition in which calcified concretions fill the lumina of the seminiferous tubules. We report the case of a 19-year-old Japanese man with mediastinal seminoma, normal testicular physical findings and bilateral testicular microlithiasis seen on ultrasonography. Testicular needle biopsy demonstrated multiple laminated calcifications within the seminiferous tubules without any signals of a viable germ cell tumor. To our knowledge, this is only the sixth reported case of extragonadal germ cell tumor with testicular microlithiasis.
authors.affiliation: Department of Urology, Graduate School of Medicine, Kanazawa University, Takaramachi, Japan.
authors.forename: Koji
authors.initials: K
authors.lastname: Sato
authors.forename: Kazuto
authors.initials: K
authors.lastname: Komatsu
authors.forename: Yuji
authors.initials: Y
authors.lastname: Maeda
authors.forename: Satoru
authors.initials: S
authors.lastname: Ueno
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Koshida
authors.forename: Mikio
authors.initials: M
authors.lastname: Namiki
mesh_terms: D000328:Adult; D002137:Calculi / Q000150:complications* / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000150:complications*; D018239:Seminoma / Q000150:complications*; D013733:Testicular Diseases / Q000150:complications* / Q000000981:diagnostic imaging; D014463:Ultrasonography