title: Extension of carcinoma of prostate along perineal needle biopsy tract.
abstract: Malignant seeding on the needle tract of a perineal prostatic biopsy is a rare complication. A review of the literature revealed only 7 cases. Herein another case is reported. Our patient, like all other cases reported, suffered from high-grade, high-stage disease and the perineal extension did not upstage his disease. We believe that perineal seeding is a reflection of the malignant potential of the prostatic malignancy and in no way detracts from the usefulness of this tool in the diagnosis and staging of the disease.
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D000368:Aged; D001707:Biopsy, Needle / Q000009:adverse effects*; D006801:Humans; D008297:Male; D009366:Neoplasm Seeding; D010502:Perineum / Q000473:pathology*; D011467:Prostate / Q000473:pathology; D011471:Prostatic Neoplasms / Q000473:pathology*