title: [Bilateral Leydig cell tumor].
abstract: A 7 year old boy presented with bilateral nodular testicular swelling, adult penis development and scrotal aspect. Laboratory studies revealed a bone age of 13 years, increased testosterone, estradiol, DHEA-S, and 17 ketosteroids levels. The GnRH test revealed puberal findings. Biopsy was consistent with Leydig cell tumor with presence of Reinke crystals. After enucleation of the tumor signs of necrosis and malignancy were shown. Orchiectomy will follow as chemotherapy and radiotherapy have been reported to be without value.
authors.affiliation: Unidad de Endocrinología, Hospital Luis Calvo Mackenna, Santiago de Chile.
authors.forename: T
authors.initials: T
authors.lastname: Vidal
authors.forename: F
authors.initials: F
authors.lastname: Biancani
authors.forename: C
authors.initials: C
authors.lastname: Ibáñez
authors.forename: R
authors.initials: R
authors.lastname: Reyes
mesh_terms: D002648:Child; D006801:Humans; D007984:Leydig Cell Tumor / Q000473:pathology*; D008297:Male; D013736:Testicular Neoplasms / Q000473:pathology*
vernacular_title: Tumor bilateral de células de Leydig.