title: Primitive neuroectodermal tumor of the testis. Report of a case.
abstract: A 30-year-old man died of a testicular tumor with widespread metastases. Both the right testis and the adjoining epididymis were replaced by a mass that consisted mainly of small cells, but differentiated focally into medullary tubules, ependymal rosettes, and glia in which glial fibrillary acidic protein was demonstrated; rare foci of cartilage and cellular mesenchyme established the teratomatous nature of the neoplasm. We believe this is the first reported case of a primitive neuroectodermal tumor of the testis.
mesh_terms: D000328:Adult; D004407:Dysgerminoma / Q000473:pathology; D004822:Epididymis / Q000473:pathology; D006801:Humans; D008297:Male; D009362:Neoplasm Metastasis / Q000473:pathology; D009373:Neoplasms, Germ Cell and Embryonal / Q000473:pathology*; D013736:Testicular Neoplasms / Q000473:pathology*