患者男,20岁。下腹部绞痛3 h入院。患者缘于3 h前无明显诱因出现下腹部疼痛,为持续性绞痛,恶心、呕吐数次,为胃内容物,无咖啡样物质,疼痛不能忍受,无放射痛,无反酸、嗳气。体检:脐周及右下腹部压痛明显,以脐右侧为著,无反跳痛,无腹肌紧张,未扪及明显包块,听诊肠鸣音8次/min,未闻及气过水声及高亢肠鸣音。急诊腹部X线片:腹部立位平片未见明显异常(图1)。腹部B超:下腹部实性占位,考虑来源于 Patient male, 20 years old. Lower abdominal cramps 3 h admission. Patients with no obvious incentive before 3 h of lower abdominal pain, persistent angina, nausea, vomiting several times for the stomach contents, no coffee-like substances, the pain can not stand, no radiating pain, no acid reflux, belching. Physical examination: the umbilical cord and lower right abdomen tenderness obvious to the right side of the umbilical, no rebound pain, no abdominal muscle tension, palpable mass was not palpable, auscultation bowel sounds 8 times / min, no gas and water Sound and high bowel sounds. Emergency abdomen X-ray film: plain abdominal film no obvious abnormalities (Figure 1). Abdomen B super: the lower abdomen solid occupy, consider from