Figure 15. CT scans with lung window settings of a male patient with pulmonary tuberculosis. In A, an axial CT scan showing multiple centrilobular opacities with small nodules and branching structures (arrows). In B, maximum-intensity projection reconstruction demonstrating opacified structures that reflect endobronchial filling of the distal bronchioles (arrows). In C, a sagittal CT scan showing, in addition to centrilobular nodules and a tree-in-bud pattern (arrows), the presence of a cavity in the upper segment of the right lower lobe, which is a characteristic location for cavitation (asterisk) in pulmonary tuberculosis.