title: A light and electron microscopic study of a hemangiopericytoma of the prostate with local extension.
abstract: A case of primary hemangiopericytoma of the prostate is reported. The patient presented with obstructive uropathy and was diagnosed as "benign prostatic hypertrophy." A transurethral resection was done and was diagnosed as "cellular leiomyoma." Obstructive symptoms recurred and skin and pubic bone involvement appeared 2 months later. Light and electron microscopy of the repeat transurethral resection and biopsy of the perineal mass confirmed the diagnosis of hemangiopericytoma of the prostate.
mesh_terms: D001485:Basement Membrane / Q000648:ultrastructure; D001859:Bone Neoplasms / Q000473:pathology; D006393:Hemangiopericytoma / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D011471:Prostatic Neoplasms / Q000473:pathology*; D011630:Pubic Bone; D012878:Skin Neoplasms / Q000473:pathology