患者男,50岁.1989年1月体检发现左肺门影增大、模糊,青霉素治疗好转.1990年2月出现胸闷、气短,胸片示两肺近肺门处片状阴影,以左侧为著,疑为肺癌,于1990年4月3日住院.既往1987年行左眼睑肿物切除术,病理诊断为淋巴样假瘤。近二年 The patient was male, 50 years old. On January 1989, physical examination revealed that the left lung portal was enlarged and blurred, and penicillin therapy improved. In February 1990, chest tightness and shortness of breath occurred. The chest radiograph showed the shadows of the near lungs at the two lungs, with the left side. For the suspect, lung cancer was admitted to hospital on April 3, 1990. In the past, he underwent left orbital mass resection in 1987. The pathological diagnosis was lymphoid pseudotumor. Nearly two years