目的研究糖尿病并发肺结核的CT表现,提高CT诊断准确性。方法选择2014年3月至2015年3月来商丘市第三人民医院就诊并经临床病理确诊为糖尿病并发肺结核的80例患者作为研究对象,回顾性分析其CT表现特征。结果 80例患者经CT检查确诊74例,准确率为92.5%,糖尿病并发肺结核患者病灶多位于肺双上叶和下叶背段,病灶多呈片状影、结节影、肿块影、毛玻璃状及树芽征等大片状或斑块状影,病灶常合并干酪性肺炎、肺癌及肺脓肿CT征象。结论糖尿病并发肺结核具有特殊的CT征象,CT诊断糖尿病并发肺结核具有较高的准确率,空洞、钙化等不同CT征象可作为判断疾病进展的依据,临床诊断时应注意与肺癌、肺脓肿等其他肺部疾病相鉴别。 Objective To study the CT findings of pulmonary tuberculosis complicated with diabetes and improve the diagnostic accuracy of CT. Methods From March 2014 to March 2015, 80 patients with diabetes mellitus and tuberculosis diagnosed clinically and pathologically were enrolled in the Third People’s Hospital of Shangqiu City. The CT features of the patients were retrospectively analyzed. Results 80 patients were diagnosed by CT in 74 cases, the accuracy rate was 92.5%. Most of the patients with pulmonary tuberculosis complicated with pulmonary tuberculosis were located in the upper lobe and lower lobe of lung. The lesions mostly showed flake shadow, nodules, mass shadow, And tree bud levy and other large patches or plaque shadow, lesions often combined with cheese pneumonia, lung cancer and lung abscess CT signs. Conclusions Diabetes complicated with pulmonary tuberculosis has special CT signs. CT diagnosis of diabetes complicated with pulmonary tuberculosis has high accuracy, cavitation and calcification, which can be used as the basis for judging the progress of the disease. In clinical diagnosis, attention should be paid to other lung diseases such as lung cancer and lung abscess Department of disease phase identification.