Primary (isolated) bilateral pulmonary hypoplasia: a comparative study of radiologic findings and autopsy results.

Comparative radiologic/pathologic study of 45 newborns with primary and secondary pulmonary hypoplasia is presented and 43 cases were proven at autopsy. From 9 cases with primary pulmonary hypoplasia, 7 could be identified by 3 independent observers on chest radiographs. The roentgen criteria of primary pulmonary hypoplasia are evaluated and should serve in future to diagnose this condition clinically.