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CT diagnosis and differential diagnosis of pulmonary multiple nodules

FAN Hong yan,HOU Yan jun,ZHAO Yan min,et al.CT Division,the Second People's Hospitial of Jiaozuo,Henan 454152,P.R.China  
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.
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