Fig. 4.

A 1-year-old girl with a cough and known to be a tuberculosis (TB) contact a Posteroanterior chest radiograph shows extensive mediastinal and hilar lymphadenopathy. b Axial post-contrast computed tomography (mediastinal window) performed a few days later confirms peripherally enhancing and low-density anterior mediastinal, pre-vascular, hilar and paratracheal nodes. There is also a pre-tracheal node that shows punctate calcification (arrow). These features are characteristic of TB. c Coronal thick slab multiplanar reconstruction (mediastinal window) demonstrates deviation of the trachea to the left but no significant airway compression