对随机选取的200例经病理组织学证实的原发性肺腺癌的X线表现进行了回顾性分析。中心型肺癌35例,占17.5%;周围型165例,占82.5%.中心型主要表现为不同形态的支气管狭窄或阻塞;周围型则以肺内孤立结节或肿块为主,亦可为弥漫性结节或肺炎浸润状病灶。周围型肺腺癌的特征性表现为边缘小分叶状,瘤周有短毛刺及胸膜凹陷的肺内孤立性结节状阴影。 The X-ray findings of 200 cases of primary lung adenocarcinoma confirmed by histopathology were analyzed retrospectively. There were 35 cases of central lung cancer (17.5%) and 165 cases of peripheral type (82.5%). The central type mainly showed different forms of bronchial stenosis or obstruction; the peripheral type mainly consisted of solitary nodules or masses in the lung, which could also be diffuse. Nodules or pneumonia infiltrating lesions. Peripheral lung adenocarcinoma is characterized by small lobulated margins with isolated lumbosacral and pleural solitary nodular shadows.