（二）原发性梗阻性或非梗阻性巨输尿管包括输尿管膀胱连接部及以上部位的梗阻，如输尿管狭窄、瓣膜、闭锁、异位输尿管开口及远端无蠕动功能输尿管等。
O O O B-dis I-dis I-dis I-dis I-dis I-dis O B-dis I-dis I-dis I-dis I-dis I-dis I-dis I-dis O O B-bod I-bod I-bod I-bod I-bod I-bod I-bod I-bod O O O O O O O O O O B-dis I-dis I-dis I-dis I-dis O B-dis I-dis O B-dis I-dis O B-dis I-dis I-dis I-dis I-dis O O O O O O O O O O B-bod I-bod I-bod O O