CLINICAL HISTORY.—A 2-month-old female infant had been well until three days prior to admission, at which time there was an onset of an upper respiratory infection with rhinorrhea, sneezing, and occasional coughing. On the morning of admission, she was taken to the family physician. Because of a mild, brassy cough, slight temperature elevation, and, particularly, apprehensive parents, a film of the chest was obtained (Figure). The child was referred to the Childrens Hospital of Los Angeles with a diagnosis of atelectasis of the right lung. The parents and a sibling had recently recovered from colds. Upon physical examination, physicians noted a healthy, alert infant whose respiratory rate was slightly increased, who had a stuffy nose, but was in no distress. Temperature and pulse rate were within normal limits. The right hemithorax was slightly smaller than the left and the heart sounds were heard mainly over the right side. The right
GWINN JL, BARNES GR. Radiological Case of the Month. Am J Dis Child. 1965;110(2):193–194. doi:10.1001/archpedi.1965.02090030203019
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