A transperineal prostate biopsy is a diagnostic procedure where tissue samples are taken from the prostate gland by inserting biopsy needles through the perineal skin. This approach allows urologists to systematically sample different regions of the prostate to detect cancer cells or other abnormalities. The procedure uses ultrasound guidance to help with needle placement and coverage of the prostate gland.
Unlike the transrectal approach, which passes through the rectal wall, the transperineal route avoids contact with the rectum entirely. This may help reduce the risk of introducing bacteria into the prostate and bloodstream. The procedure can sample areas of the prostate, including the anterior zone, which can be accessed with this biopsy method.
The transperineal approach is recognised as a diagnostic tool, particularly when previous biopsies were inconclusive or when there’s continued suspicion of cancer despite negative results. Modern techniques allow either template-guided or freehand approaches, both of which provide systematic sampling of the prostate gland.