一、概述肺混合性恶性肿瘤是指癌和肉瘤两者充分混合于一个瘤体内的肺原发瘤。一般认为有两种类型:肺母细胞瘤和癌肉瘤。肺癌肉瘤于1908年Kika 氏即有报道,迄1974年共31例。肺母细胞瘤于1952年Barnard 氏首例论及,迄1977年共40例。MayoClnic 于1915—1965,50年间,肺癌肉瘤共9例,肺母细胞瘤仅4例,故肺母细胞瘤较癌肉瘤尤为少见。放射学方面迄1974年为首例 I. INTRODUCTION Pulmonary mixed malignancy refers to a primary tumor in which both cancer and sarcoma are well mixed in one tumor. There are two general types believed to be: blastoma and carcinosarcoma. Lung cancer sarcoma was reported in 1908 by Kika, and there were 31 cases in 1974. Pulmonary blastoma was first described in Barnard’s case in 1952, and there were 40 cases in 1977. MayoClnic from 1915 to 1965, 50 years, a total of 9 cases of lung cancer sarcoma, 4 cases of pulmonary blastoma, so the lung blastoma is more rare than cancer sarcoma. Radiology was the first case to date in 1974