肺泡细胞癌发生于本稍支气管上皮，又称细支气管癌，现已认识到本病是一种特殊的组织学和生物学形态的原发癌尤其它原发肺癌预后好。我院近期遇到1例，自发病至确诊长达12年．实属罕见。现报告如下：[病例]女，45岁。1982年4月查体时X线胸片发现右肺心线处可见团块状密度增高影 Alveolar cell carcinoma occurs in the minor bronchial epithelium, also known as bronchiolar carcinoma. It is now recognized that the disease is a special histological and biological form of primary cancer, especially its primary lung cancer. Our hospital recently encountered 1 case, from the onset to the diagnosis of up to 12 years. It is rare. The report is as follows: [Case] ​​Female, 45 years old. In April of 1982, the chest X-ray findings showed that the density of clumps increased at the right heart line.