Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is probably at the upper limits of normal size . Hilar fullness and indistinctness of vasculature suggest mild venous hypertension or congestion , but otherwise the lungs appear clear within the limitations of technique . There is no definite pleural effusion or pneumothorax .
    OUTPUT:
    
Findings suggesting mild pulmonary congestion .