Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal upright portable radiograph of the chest was obtained . Mild enlargement of the cardiac silhouette is unchanged . No focal consolidation , pleural effusion or pneumothorax is present . The previously seen right pleural effusion has resolved . Prior right PICC is no longer seen .
    OUTPUT:
    
Stable mild cardiomegaly . No evidence of pneumonia