Figure 5.

(a–c): Lymphobronchial TB. Chest radiograph and CT in a 13-month-old boy with confirmed pulmonary TB: (a) The frontal AP chest radiograph is suggestive of bilateral hilar and paratracheal lymphadenopathy by the presence of bronchus intermedius and left main bronchus compressions resulting in bilateral (black arrows), mid and lower zone air-trapping. (b) Axial, post-contrast, soft-tissue-windowed CT scan at the level of the pulmonary trunk bifurcation demonstrates extensive subcarinal and hilar lymphadenopathy (black arrows) with marked bronchus intermedius attenuation (white arrow). (c) Coronal reconstruction of the post-contrast soft-tissue-windowed CT scan demonstrates paratracheal, sub-carinal and hilar lymphadenopathy (stars). There is attenuation of the bronchus intermedius and the left main bronchus (white arrows). There is also a suggestion of erosion of a right hilar lymph node into the lumen of the bronchus intermedius (black arrow).