Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided AICD is demonstrated with leads terminating in the regions of the right atrium and ventricle , unchanged . Mild to moderate cardiomegaly is similar . Mediastinal and hilar contours unchanged . There is mild upper zone vascular redistribution compatible with mild pulmonary vascular congestion . No focal consolidation , pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Moderate cardiomegaly with mild pulmonary vascular congestion .