1 病例报告患者男,80岁。因腹胀、排尿困难来诊。查体:腹软,肝脾未触及,腹部叩诊移动性浊音。既往有前列腺增生病史,外院彩超提示前列腺增大,膀胱未见异常。B超所见:肝、胆、脾未见异常回声,腹腔内见不规则无回声区,平卧位下腹部最大深度8.9cm,其内可见肠管 1 case report Male patient, 80 years old. Due to abdominal distension, dysuria to diagnosis. Examination: abdominal soft, liver and spleen not touched, abdominal percussion mobile dullness. Past history of benign prostatic hyperplasia, ultrasound outside the hospital prompted prostate enlargement, no abnormal bladder. B seen: liver, gallbladder, spleen no abnormal echo, intra-abdominal see irregular anechoic area, the maximum depth of the lower abdomen supine position 8.9cm, which can be seen in the intestine