1　病例资料例1:男,35天。因发热、哭闹1周收入儿内科,输液抗炎治疗4天病情无缓解,右下腹发现鸡蛋大小包块,经Ｂ超检查证实后转入儿外科。入院体检:体温378℃,神萎、哭声低,营养中等,皮肤巩膜无黄染,皮肤无红斑及出血点。全身表浅淋巴结不大。腹胀明显,未见胃肠型及蠕动波。全 1 case data example 1: male, 35 days. 1 week due to fever, crying medicine, infusion of anti-inflammatory treatment for 4 days without remission, the right lower quadrant found that the size of egg mass, confirmed by B-ultrasound after surgery into the child. Admission medical examination: body temperature 378 ℃, Shen Wei, crying low, medium nutrition, skin sclera no yellow dye, no erythema and bleeding spots. Small superficial lymph nodes. Significant abdominal distension, no gastrointestinal type and peristaltic waves. all