患者 ,男 ,5 0岁。发现会阴部无痛性肿物 1周 ,来我院就诊 ,以“会阴部肿物”收住院。查体 :阴囊无红肿 ,双睾丸、附睾无增大及触痛 ,会阴部可触及一肿物 ,无触压痛 ,呈椭圆形 ,表面光滑 ,界限清楚 ,基底部似与骨组织粘连固定 ,活动度差。B超显示 :会阴部可分别探及 6 5 mm× 4 Patient, male, 50 years old. Perineal pain was found in 1 week, to our hospital, “perineal tumor” admitted to hospital. Physical examination: no swelling of the scrotum, double testis, epididymis without increased and tenderness, perineal palpable mass, no tenderness, oval, smooth surface, clear boundaries, the base of the Department of bone tissue adhesion and fixation, activity Poor degree. B ultrasound shows: perineal exploration and respectively 6 5 mm × 4