[Computerized tomography of the lungs and mediastinum in children with tuberculosis risk].

Computed tomography (CT) was made in 75 children and adolescents infected with M. tuberculosis. As shown by x-ray, they had normal lungs and mediastinum. The children comprised a group of tuberculosis risk and had undergone regular check-ups for tuberculosis. CT has detected tuberculosis of the intrathoracic lymph nodes (ITLN) in 28(37.3%) children. Adenopathies were discovered in 8 anatomic groups, being more frequent in retrocaval, tracheobronchial, pulmonary and paratracheal. 25 children were diagnosed to have minor form of ITLN tuberculosis (nodes size 6-10 mm), 3 children had more prominent adenopathy up to 20 mm in diameter. Three groups of preventive policy are identified: with minor tuberculosis of ITLN, intrathoracic micropolyadenopathy and normal CT picture of the lungs and mediastinum.