Ultrasonography revealed a prostatic enlargement in 8 ( 23.5%),high echo in 4 (11.3%),low echo in 12 (35.2%),vesical infiltration in 6 (17.6%) and semical rectal wall invasion in 3 (8.8%).

• B超34例，腺体增大凸入膀胱8例（23.；5%25），内部强回声4例（11