对5例B2期、浸润性膀胱移行上皮细胞癌患者施行逆行保留性功能的根治性膀胱前列腺全切术及原位乙状结肠球形新膀胱成形术。随访6～22个月，新膀胱容量大，内压低，抗返流，迅速可控，经尿道排尿，排空完全，无全身营养障碍和水、电解质及酸碱平衡紊乱。5例均保留性功能。认为只要仔细选择好手术适应证，本术式既能有效地自控排尿，又能保留良好的性功能。 Radical bladder prostatectomy and in situ sigmoid colon neoplasty were performed on 5 patients with stage B2 invasive bladder transitional cell carcinoma. After 6 to 22 months of follow-up, the neo-bladder had large capacity, low internal pressure, anti-reflux, and rapid controllability. Transurethral urination, emptying completely, no systemic dystrophy and disturbance of water, electrolyte and acid-base balance. All 5 cases retained sexual function. It is believed that as long as the surgical indications are carefully selected, this surgical procedure can effectively control the urination and retain good sexual function.