Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are low in volume but clear . Mild cardiomegaly has increased slightly . The mediastinal silhouette and hilar contours are otherwise normal . No pleural effusion or pneumothorax is present . Clips are noted in the right upper quadrant from a cholecystectomy .
    OUTPUT:
    
Mild cardiomegaly . If pulmonary embolism continues to be of clinical concern , then a CT is recommended for further evaluation .