title: Leydig cell hyperplasia mimicking testicular neoplasm.
abstract: Patients with extragonadal seminoma are at high risk of developing a primary testicular neoplasm many years after the initial diagnosis and therapy. Therefore, long-term follow-up is critical in the proper management of these patients. We present the first case of Leydig cell hyperplasia, mimicking a testicular neoplasm, 21 years after diagnosis and treatment of extragonadal seminoma.
authors.affiliation: Department of Pathology, Brigham and Women's Hospital, Boston, MA 02115, USA.
authors.forename: A F
authors.initials: AF
authors.lastname: Olumi
authors.forename: M B
authors.initials: MB
authors.lastname: Garnick
authors.forename: A A
authors.initials: AA
authors.lastname: Renshaw
authors.forename: C A
authors.initials: CA
authors.lastname: Benson
authors.forename: J P
authors.initials: JP
authors.lastname: Richie
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D006965:Hyperplasia; D007985:Leydig Cells; D008297:Male; D018239:Seminoma / Q000473:pathology; D013736:Testicular Neoplasms / Q000473:pathology*; D013737:Testis / Q000473:pathology*; D013997:Time Factors