Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is borderline enlarged . Mediastinal and hilar contours are normal . Lungs are clear and the pulmonary vasculature is normal . No pleural effusion , focal consolidation or pneumothorax is identified . No acute osseous abnormalities seen .
    OUTPUT:
    
Borderline enlarged heart . No evidence of pulmonary edema .