Radiological Case of the Month

CLINICAL HISTORY.—A 4-hour-old male, who weighed 8 lb 6 oz (3.8 kg), was brought to the hospital because of cyanosis and difficult breathing. Two older siblings had not presented a similar problem. Pregnancy and delivery at term had been uncomplicated. In an oxygen tent the color of the infant improved and respirations became less labored. Plasma pH was 7.11, indicating respiratory (?) acidosis. Roentgenograms of the chest (Fig 1) presented an unusual picture. Appropriate therapy was instituted with subsequent disappearance of the untoward symptoms.

Denouement and Discussion 

Cystic Adenomatoid Malformation of the Upper Lobe of the Right Lung  Following lobectomy on the second day of life, respiratory difficulty disappeared completely (Fig 2).Cystic adenomatoid malformation usually affects all of a single lung lobe. The age when symptoms begin is variable. When there is massive air-trapping by the cysts, severe respiratory distress usually starts in the neonatal