患儿,女,12岁,因阵发性左下腹疼痛21d再发加重4h,以“腹痛待查”急诊收住入院。患儿家属诉入院前21d,患儿无明显诱因出现左下腹疼痛,伴呕吐,呕吐物为胃内容物,自行治疗后缓解但多次发作,疼痛为阵发性剧痛。随着病程延长,发作次数越来越频繁,每次发作的持续时间延长,疼痛发作与 Children, female, 12 years old, due to paroxysmal left lower quadrant pain recurrence 21d heavier 4h, “abdominal pain pending” emergency admission admitted. Family members of children complained of 21d before admission, children with no obvious incentive left lower quadrant pain, with vomiting, vomit for the stomach contents, relieve self-treatment but repeated episodes, the pain was paroxysmal pain. As the duration of the disease increases, the frequency of attacks is more and more frequent, the duration of each attack is prolonged, and the onset of pain