Differential diagnosis: all situations that lead to bowel obstruction: jejunal atresia, ileal atresia, cystic fibrosis with meconium ileus, and meconium pseudocyst , small bowel duplication (13).

• 鉴别诊断：所有能导致肠梗阻的病变：空肠闭锁，回肠闭锁囊性纤维化变性伴胎粪性肠梗阻，以及胎粪假性囊肿，小肠重叠。