患儿　系同卵双生子 ,兄弟俩均因出生后即出现吸气性呼吸困难及进食困难而就诊。查体 :兄弟俩均有明显的吸气性呼吸困难 ,三凹征明显 ,并伴有阵发性青紫 ,仰卧时更为明显。下颌骨小且双侧对称性后缩 ,双耳位低 ,外耳道闭锁 ,腭裂呈 U形 ,舌后缩。其余体格检查未见明显异常。双? Children with identical twins, the two brothers are due to be born after birth, breathing difficulties and eating difficulties treatment. Physical examination: The two brothers have significant inspiratory dyspnea, three concave sign was obvious, accompanied by paroxysmal bruising, supine more obvious. Small mandibular and bilateral symmetry of the back, low in both ears, external auditory canal atresia, cleft palate was U-shaped, tongue retraction. The rest of the physical examination showed no obvious abnormalities. double?