Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . The heart is markedly enlarged . Pulmonary vascular congestion is noted without frank edema . No large effusion or pneumothorax . No convincing evidence for pneumonia . Mediastinal contour is normal . The imaged bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Marked cardiomegaly with hilar congestion .