Conclusion The seminal vesicle and NVB can be used as landmarks intraopratively to avoid injury to the pelvic plexus and the cavernous serves in nerve-sparing radical cystectomy.

• 结论明确盆丛、NVB位置以及与盆腔器官的毗邻关系，有助于术中有效鉴别和保护盆丛和NVB，达到保留性神经的盆腔、会阴部手术的目的。