Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . The heart remains mildly enlarged . Mild hilar congestion . There is no frank edema . No large effusion or pneumothorax . A coronary stent is seen projecting over the left heart border . Bony structures are intact .
    OUTPUT:
    
Mild cardiomegaly . Pulmonary vascular congestion .