[Clinical and radiologic characteristics of undeveloped lung in children].

Lung underdevelopment was detected in 60 of the 2487 children aged 1 to 17 with the clinical picture of recurrent bronchitis. Seven patients presented with aplasia and agenesia of the lung or its part, ten with cystous hypoplasia, eight with common hypoplasia, and thirty-five with acquired form of the respiratory system underdevelopment. The efficacies of various methods of radiodiagnosis in underdevelopment of the vessels, bronchi, and the respiratory sections varied. The major signs of hypoplasia were reduced volume and changed transparency of the lung, formation of the mediastinal hernias, appearance of ring-shaped shades, disordered structure of the bronchi and major vessels, capillary blood stream reduction.