Extension of carcinoma of prostate along perineal needle biopsy tract

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.