Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette is enlarged with mild interstitial edema . Pulmonary artery is enlarged . Lung volumes are low , and there is a left retrocardiac opacity . A left axillary vascular stent is again noted .
    OUTPUT:
    
Cardiomegaly with mild interstitial edema . Suspected pulmonary hypertension .