患者,男,63岁。因腹胀、腹痛20余天,未排气1周前来就诊。查体:腹部膨隆,未触及腹部包块。 B超检查:所用仪器西门子SL-1,探头频率3.5MHz。肠管明显扩张,最宽径6.7cm,并有肠内容物来回摆动。肠间隙少量积液,最深径1.5cm,左上腹相当于结肠脾曲处见4.2cm×7.3cm×5.9cm不规则低回声肿块,中心回声增强,周边回声减低,呈“假 Patient, male, 63 years old. Due to abdominal distension and abdominal pain for more than 20 days, he did not exhaust for one week before coming to the clinic. Physical examination: The abdomen bulges and does not touch the abdominal mass. B-ultrasonic examination: The instrument used is Siemens SL-1, with a frequency of 3.5 MHz. The intestine was significantly dilated, with a widest diameter of 6.7cm, and the contents of the bowel oscillated back and forth. A small amount of effusion in the intestinal space, the most deep diameter 1.5cm, the left upper quadrant is equivalent to 4.2cm × 7.3cm × 5.9cm irregular hypoechoic mass seen in the spleen of the colon, the echo of the center is enhanced, the surrounding echo is reduced, showing "false