Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is moderately enlarged , and minimally increased in size from the prior exam in ___ . There is marked pulmonary vascular congestion and interstitial pulmonary edema , increased from the most recent prior examination . A focal opacity in the periphery of the right lower lobe is new . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Cardiomegaly and vascular engorgement with mild interstitial edema . New peripheral right lower lobe opacity could potentially represent an early focus of pneumonia or a pulmonary infarct in the appropriate clinical setting