Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is minimal bilateral lower lung atelectasis as well as pulmonary vascular congestion . The lungs are otherwise clear . The heart is moderately enlarged . There are no definite pleural effusions . No pneumothorax is seen . There is a large hiatal hernia . There is no free air under the diaphragm .
    OUTPUT:
    
1 . Pulmonary vascular congestion , without frank interstitial edema . 2 . Moderate cardiomegaly . 3 . Large hiatal hernia .