目的 :提高肺泡癌的X线诊断与鉴别诊断能力。材料与方法 :搜集 9例经病理确诊的肺泡癌系列胸片 ,总结其X线征象与产生的病理基础。结果 :磨砂玻璃征 ,腺泡样结节 ,病理性支气管气相具有重要的诊断价值。结论 :肺泡癌较易误诊 ,必须熟悉各种类型的肺泡癌征象 ,紧密结合临床 ,才能及时作出正确诊断。 Objective: To improve the ability of X-ray diagnosis and differential diagnosis of alveolar carcinoma. Materials and Methods: Nine cases of pathologically diagnosed alveolar carcinoma series chest radiographs were collected and their X-ray signs and their pathological basis were summarized. Results: Frosted glass sign, acinar nodules, pathological bronchial gas phase has important diagnostic value. CONCLUSIONS: Alveolar carcinoma is more likely to be misdiagnosed and must be familiar with all types of signs of alveolar carcinoma. Clinically, it should be combined with clinical practice to make correct diagnosis in time.