肺母细胞瘤为极其少见的恶性肿瘤,我们自1979年以来共收治4例,现报告如下。临床资料　本组中男3例,女1例;年龄40～74岁,平均45.6岁。患者主要症状为咳嗽、痰中带血和胸痛。胸部Ｘ线片为肺内团块状密度增高影,左肺和右肺各2例,均为周围型。病史2～10个月,平均3.6个月。病变... Pulmonary blastoma is an extremely rare malignancy. We have treated 4 cases since 1979. The report is as follows. Clinical data in this group of 3 males and 1 female; aged 40 to 74 years, mean 45.6 years. The main symptoms of the patient were cough, bloody sputum, and chest pain. Chest X-ray films showed an increase in mass density in the lung, 2 cases of left lung and right lung, all of which were peripheral. The medical history is 2 to 10 months, with an average of 3.6 months. Lesions...