Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is moderately enlarged with pulmonary vascular engorgement . No frank interstitial edema . Asymmetric right lower lobe densities are suspicious for pneumonia . No pleural effusion or pneumothorax .
    OUTPUT:
    
Moderate cardiomegaly , vascular congestion without frank interstitial edema . Probable right lower lobe pneumonia .