title: Ossifying malignant Leydig (interstitial) cell tumour of the testis.
abstract: An ossifying malignant Leydig cell tumour of the testis in a patient with associated gynaecomastia is presented. The criteria for diagnosing malignancy in these tumours are briefly discussed.
authors.affiliation: Department of Histopathology, Queens Medical Centre, Nottingham, UK.
authors.forename: M
authors.initials: M
authors.lastname: Balsitis
authors.forename: M
authors.initials: M
authors.lastname: Sokal
mesh_terms: D000328:Adult; D006177:Gynecomastia / Q000209:etiology; D006801:Humans; D007984:Leydig Cell Tumor / Q000150:complications / Q000473:pathology*; D008297:Male; D009999:Ossification, Heterotopic / Q000473:pathology*; D013736:Testicular Neoplasms / Q000150:complications / Q000473:pathology*