Pulmonary CT can reveal the presence or absence of tuberculosis. Pulmonary CT has clearer images compared to chest radiographs, has higher resolution, and can reduce overlapping images, can evaluate the subtle features of lesions, can more easily detect hidden lesions in the chest and in the trachea and bronchi, can detect early cornual shadows, and can clearly show the characteristics of various types of tuberculosis lesions, and can show mediastinum Lymph nodes are enlarged or not. CT imaging of pulmonary tuberculosis is characterized by the coexistence of various forms, mostly in the post-apical segment of the upper lobe, the dorsal and post-basal segments of the lower lobe, and the coexistence of infiltrative, proliferative, caseous and fibrotic lesions with heterogeneous density. However, CT alone cannot confirm the diagnosis, and sputum culture finding Mycobacterium tuberculosis is the gold standard for the diagnosis of TB.