Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes remain slightly low , similar the prior exam . Central pulmonary vascular congestion is mild with mild cephalization of the vasculature . Pulmonary arteries remain enlarged . The heart remains enlarged . Aortic knob calcifications are mild . No evidence of a pleural effusion . No pneumothorax . No focal consolidation to suggest focal pneumonia . The thoracic spine is curved to the right .
    OUTPUT:
    
1 . Persistent low lung volumes . 2 . Findings suggestive of volume overload and / or heart failure with central pulmonary vascular congestion , cardiomegaly , and prominent pulmonary arteries . 3 . No definite focal consolidation to suggest a focal pneumonia .