报告１２例经临床证实的球形肺炎患者的临床和ＣＴ表现。讨论了本病的ＣＴ诊断、鉴别诊断及发病机理，认为ＣＴ图像上垂直于胸膜的刀切样边缘或方形病灶是球形肺炎病变的特异征象，同时认为末梢支气管粘液潴留形成痰栓是发病原因之一 Clinical and CT manifestations of 12 patients with clinically confirmed spherical pneumonia were reported. The CT diagnosis, differential diagnosis and pathogenesis of this disease were discussed. It is considered that the knife-edge or square lesions perpendicular to the pleura on the CT image are the specific signs of the disease of spherical pneumonia. At the same time, the formation of sputum suppository by peripheral bronchial mucus is considered to be the cause of the disease one