例1男，71岁。因小便淋漓不尽，尿痛、血尿1年入院。体检：下腹部明显膨隆，可触及约12cm×10cm圆形质硬包块，其上缘于脐下3指，表面光滑，活动度差，无压痛。X线检查示膀胱区有一约12cm×11cm大小的圆形光滑结石影，结构均匀。IVU示双侧肾盂、肾盏积水。手术切开膀胱取出一12 Example 1 male, 71 years old. Because of urination dripping, dysuria, hematuria 1 year admission. Physical examination: the lower abdomen was obviously bulging, palpable about 12cm × 10cm round hard mass, the upper edge of the umbilical 3 fingers, smooth surface, poor mobility, no tenderness. X-ray examination showed the bladder area has a size of about 12cm × 11cm round smooth stone shadow, uniform structure. IVU showed bilateral renal pelvis, calyceal hydrops. Surgical removal of the bladder to remove a 12