Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly increased when compared to the prior study , and appears borderline enlarged . Mediastinal and hilar contours are normal . Lungs are clear . There is no pulmonary vascular congestion . No pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .