Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Lung volumes are low limiting assessment . There is mild elevation of the right hemidiaphragm . Hilar congestion is noted without frank edema . No large effusion or pneumothorax . No convincing signs of pneumonia . Heart appears top - normal in size .
    OUTPUT:
    
Top normal heart size with mild hilar congestion without frank edema .