Among them, solitary nodule has relatively more special features, such as multi-lobulation sign, air-bronchogram sign and pleural retraction;

• 结果：根据大体病理及相对影像上病变形态和分布特点，可将细支气管肺泡癌分为孤立结节型5例占21%25，多发结节型11例占46%25，弥漫型8例占33%25。