Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two views of the chest demonstrate low lung volume . There is no pleural effusion or pneumothorax . Cardiac silhouette remains mildly enlarged with an especially prominent left atrium . The pulmonary vasculature is normal .
    OUTPUT:
    
Unchanged cardiac enlargement , especially with respect to the left atrium ; there is no acute chest pathology or cardiac decompensation .