<unk>  is a<unk>  procedure in which a sample of tissue is removed from the prostate using a thin needle that is inserted through the rectum and into the prostate. Transrectal ultrasound (TRUS) is usually used to guide the needle. The sample is examined under a microscope to see if it contains cancer.
Transrectal biopsy
Transperineal biopsy
Transrectal ultrasonography
Prostate biopsy
Transurethral biopsy
Endoanal ultrasound
Anorectal manometry
Uroscopy