Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are stable . The aorta is tortuous and shows a calcified wall . There is moderate cardiomegaly . Lung volumes are low . No large pleural effusion or pneumothorax . There is mild pulmonary edema .
    OUTPUT:
    
Slightly low lung volumes . Increased cardiomegaly and vascular congestion due to cardiac decompensation and / or volume overload .