As neonatal intussusception is rare, especially in the premature infant, and clinically can be mis-diagnosed as necrotizing enterocolitis, sonography can be very helpful in the differential diagnosis of intestinal obstruction in the newborn period.

• 由于早産儿肠套叠非常光见且临床上与坏死性肠炎非常相似，常被延误诊断，特提出病例报告，并讨论之。