Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right basilar opacity may represent a combination of cardiac silhouette and atelectasis . Heterogeneous opacity at the left base suggest atelectasis , less likely infection . No large pleural effusion or pneumothorax . There is no central vascular congestion or overt pulmonary edema . Mediastinal and hilar contours are unchanged with moderate unfolding of the thoracic aorta . Moderate cardiomegaly is stable .
    OUTPUT:
    
1 . Right basilar opacity may represent a combination of cardiac silhouette and atelectasis . Left basilar atelectasis . No definite focal consolidation . 2 . Stable moderate cardiomegaly without evidence of pulmonary edema .