小儿气管、支气管异物多见于５岁以下的婴幼儿，以植物性食物（如花生米、豆粒、瓜子等）多见，偶而可见于呼吸道疾患所产生的浓痰块。由于上述异物在Ｘ线平片上不能够显影，只能根据间接Ｘ线征象推断异物的存在和所停留的部位。而间接Ｘ线征象往往多种多样，因此，对于明... Pediatric trachea, bronchial foreign body more common in infants and children under the age of 5 to plant foods (such as peanuts, beans, melon seeds, etc.) more common, occasionally seen in respiratory tract disease caused by thick sputum block. Because of the above foreign body can not be developed in the X-ray, only based on indirect X-ray findings infer the existence of foreign bodies and the site of stay. Indirect X-ray signs are often varied, therefore, for the Ming ...