患者,男,46岁。因间断咳嗽、咯痰、痰中带血9月于1998年9月入院。既往健康,无“肺炎”等肺 病史,胚胎期及胎儿期无不良用药史,足月顺产,出生后发育正常,嗜烟10余年,20支/d,家族中无遗传病史。查体:胸廓对称无畸形,呼吸动度均匀对称,呈腹式呼吸,双肺叩诊清音,肺下界移动度双肺均为6cm,无语颤增强减弱,呼吸音清晰,语音传导正常。未闻及病理性呼吸音。胸片示右上肺沿第一前肋外缘一规则条索状密度增高影外凸至第三前肋内缘(见图1)。胸部CT片示右上肺从 Patient, male, 46 years old. Due to intermittent cough, expectoration, bloody sputum September in 1998 September admission. Past health, no “pneumonia” history of lung disease, embryo and fetal history of non-adverse drug use, term full-term, normal after birth, smoke more than 10 years, 20 / d, no genetic history of the family. Examination: Thoracic symmetry without deformity, respiratory symmetry uniform, was abdominal breathing, percussion lungs percussion, lower lung movement of both lungs were 6cm, no auditory tremor enhanced weakness, clear breath sounds, voice conduction is normal. Not known and pathological respiratory sounds. The chest radiograph shows the right upper lung along the outer edge of the first rib of a regular cord-like density convex to the third anterior rib rim (see Figure 1). Chest CT showed the right upper lung from