简要病史患者,男性,56岁。以往体健,偶有“感冒”无其他严重疾病,平时无任何不适。于2006年9月初开始有咳嗽、咳痰量极少,伴有活动后气促。在当地医院摄胸片及CT扫描拟为纵隔病变,未予治疗。自觉二月来症状加重,同时觉胸部有压迫感;一周前出现声音嘶哑,吞咽有阻塞感乃来沪就医? Brief history of patients, male, 56 years old. In the past physical health, occasional “cold” no other serious diseases, usually without any discomfort. Beginning in early September 2006 cough, sputum volume is very small, accompanied by shortness of breath activities. Chest radiographs and CT scans at a local hospital were proposed as mediastinal lesions without treatment. Consciously increased symptoms in February, while feeling chest pressure; a hoarse voice appeared a week ago, swallowing a sense of obstruction is to Shanghai for medical treatment?