Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided AICD device is noted with single lead terminating in the right ventricle , unchanged . Moderate to severe cardiomegaly is again noted , accentuated by the presence of low lung volumes . Mediastinal and hilar contours are unremarkable . There is mild upper zone vascular redistribution . Opacification within the left lung base may reflect atelectasis but infection is not excluded . Probable small bilateral pleural effusions are noted . There is no pneumothorax . Surgical anchor is seen projecting within the left humeral head .
    OUTPUT:
    
Mild pulmonary vascular congestion with probable small bilateral pleural effusions and moderate to severe cardiomegaly .