RESULTS: Among these patients, there were 10(76.9%) males and 3(23.1%) females aged from 37 to 76 (median 57) years old. Common clinical manifestations were cough (9,69.2%), apnea (3,23.1%), bloody sputum 2(15.4%), while 2(15.4%) cases had no symptoms at diagnosis. The characteristics of the chest CT showed: the lesions were characterized by multiple consolidation shadows with air bronchogram sign (n = 10), multiple nodules (n = 2), solitary mass (n = 1). Seven (53.8%) cases were confirmed by surgery 4 (30.8%) by percutaneous lung biopsy, 2 (15.4%) by bronchoscopic biopsy. In some cases the presence of immune deficiencies cells, blood CD4 decreased in six cases. Blood tumor markers normal nine cases, four cases of abnormal, CYFRA21-1 increased in two cases, CA72-4 and CA199 increased in 1 case. The treatment methods included surgery, combined chemotherapy, radiotherapy and Chinese herbal medicine.