Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is pulmonary vascular congestion with mild pulmonary edema . Left retrocardiac opacity is consistent with atelectasis . No focal consolidation , pleural effusion or pneumothorax . Mediastinal and hilar contours are stable . Severe cardiomegaly is unchanged .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Mild pulmonary edema . Stable substantial cardiomegaly . 3 . Left retrocardiac opacity is consistent with atelectasis .