Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate an enlarged cardiomediastinal silhouette , unchanged . There is an opacity in the left lung base that likely represents an area of atelectasis . There is no focal consolidation , pleural effusion , or pneumothorax . There is minimal pulmonary vascular congestion without interstitial edema . There is a stable compression deformity of the T12 vertebral body .
    OUTPUT:
    
Mild pulmonary vascular congestion without overt pulmonary edema .