Of 36 cases, edgily metal slices were found in 10 pati ents,fish bone in 1 patient,nucleus of Chinese date in 21 patients,toy plane in 1 patient, plastic pentacle in 2 patients, iron chain in 1 patient.

• 36例异物中鱼骨1例,边缘锐利的金属片10例,枣核21例,塑料五角星2例,玩具小飞机1例,铁丝1例。