Congenital tuberculosis is an infection that is established in the fetus by hematogenous spread or by the aspiration or inhalation of infected ammiotic fluid either before or during labor. The diagnosis can be confirmed only if both the tuberculous nature of the lesion and the antenatal origin of the infection can be proved. The authors analysed roentgen find-ings of two cases of pulmonary toberculosis. thought to be congenital; 1. Diffuse distribution of nodular densities and some confluent densities were seen in the entire lungs in the initial film. The pulmonary markings were decreased in some degree. 2. Air bronchogram was noted. 3. Hepatosplenomegaly was associated.