患者女,33岁。自幼进食后胸闷、气短,有时伴心慌,以饱餐后为著。查体:发育差,营养中等,胸廓对称;左肺背部呼吸音变低,未闻及干湿罗音。腹部B超示肝、胆、胰、脾位置正常。心电图及实验室检查无异常。X线胸透见左肺中带偏后宽6.0cm长带状阴影,上至第4后肋水平,下至膈面;带状阴影 Female patient, 33 years old. After eating infantile chest tightness, shortness of breath, sometimes with palpitation, with a meal after. Examination: poor development, moderate nutrition, symmetry of the thorax; left lung breath sounds lower, no smell and wet and dry rales. Abdominal B- showed liver, gallbladder, pancreas, spleen normal position. ECG and laboratory tests without exception. X-ray chest seen in the left lung with a partial width of 6.0cm long strip shadow, up to the fourth after the rib level, down to the diaphragmatic surface;