1　临床资料　　患者　男,19岁。因发现阴囊底部肿块10余年,于1999年1月入院,有先天性阴囊型尿道上裂病史,于1982年行阴茎下曲成形术,5年后行尿道下裂矫形术,术后排尿尚通畅,1年后阴囊内有一花生米大小的肿块,质地硬,无明显疼痛,近两年来增大明显,至入院时小鸡蛋大小。术前Ｂ超 1 clinical data patient male, 19 years old. Because of the discovery of the bottom of the scrotum mass more than 10 years, admitted in January 1999, a history of congenital scrotal hyperplasia of the urethra, penile genioplasty in 1982, 5 years after hypospadias orthopedic, postoperative urination is still smooth A year after the scrotum a peanut-sized mass, hard texture, no obvious pain, increased significantly in the past two years, to the size of small eggs on admission. B-preoperative