Computed tomography of children with pulmonary Mycobacterium tuberculosis infection

Chest posterior–anterior radiograph of an asymptomatic 11-year-old girl with a history of close contact. (A) Before treatment, the inferior lateral aspect of the enlarged right pulmonary hilar shadow bulges (arrows). (B) The right hilar shadow is no longer prominent after 3 months of antiTB treatment.

(A) Chest CT of a 10-year-old boy with pulmonary TB. Axial image through both upper lung fields revealed small nodular opacities (arrows) at the left upper anterior and apicoposterior peripheral lung zones. Subsegmental patchy densities (arrowheads) are scattered at the left upper anterior, posterior, and right posterior lung fields. (B) Another boy, aged 6 years, had CABP involving the right upper posterior lung segment, and cavitation with air-fluid level is evident (black arrows).

Chest CT of a 14-year-old boy in the coronal plane. Tiny calcification densities (arrows) extend along the aortic arch. Rim enhancement suggesting caseous necrosis is evident at the right lower jugular region and right lower and left upper paratracheal regions after use of intravenous contrast medium (arrowheads).