Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The lungs are well expanded . Diffuse hazy bilateral opacities may be due to mild pulmonary edema . The heart is slightly enlarged . There is mild right basilar atelectasis . No consolidation , pleural effusion or pneumothorax . A calcified right upper lobe nodule is unchanged . Cardiac and mediastinal silhouettes and hilar contours are stable . No acute osseous abnormality is identified . There is no free air under the diaphragm .
    OUTPUT:
    
Cardiomegaly . Possible mild interstitial edema .