肺内多发小结节的CT诊断与鉴别诊断

目的：探讨肺内多发小结节的cT特征，提高cT诊断的准确性。方法：回顾性分析经病理或临床证实的53例肺内多发小结节患者的CT分布特征，其中血行性肺转移瘤15例，粟粒性肺结核8例，癌性淋巴管炎10例，矽肺3例，肺结核支气管播散10例，细支气管肺泡癌7例。结果：血行性肺转移瘤、粟粒性肺结核、细支气管肺泡癌小结节呈随机分布；癌性淋巴管炎、矽肺小结节沿淋巴管周围分布；肺结核支气管播散呈小叶中心分布。结论：CT对肺内多发小结节具有较大的诊断价值。

CT diagnosis and differential diagnosis of pulmonary multiple nodules

Objective:To study the CT characteristics of pulmonary multiple nodules to improve its diagnostic accuracy.Methods:The CT findings of 53 cases with pulmonary multiple nodules (including 15 cases of hemtogenous dissemination of tumor metastasis,8 cases hemtogenous dissemination of tuberculosis,10 cases pulmonary lymphangitic carcinomatosis,3 cases silicosis,10 cases bronchogenic dissemination of tuberculosis,7 cases bronchioalveolar carcinoma) comfirmed by pathology or clinic were analysed retrospectively.Results:Pulmonary multiple nodules of hemtogenous dissemination of tumor metastasis and of tuberculosis and bronchioalveolar carcinoma were distributed at random.Pulmonary multiple nodules of pulmonary lymphangtic carcinomatosis and silicosis were distributed along with lymph channels;pulmonary multiple nodules of bronchogenic dissemination of tuberculosis had a centrilobular distribution.Conclusion:CT has important value in differentiation of pulmonary multiple nodules.