Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate a left pectoral dual - channel AICD device with leads terminating in the right atrium and right ventricle . Massive cardiomegaly is unchanged . There is mild central vascular fullness without frank edema . There is no pneumothorax , consolidation or pleural effusion . Trace bibasilar subsegmental atelectasis may be present . Median sternotomy wires are unchanged , with the most superior wire disrupted .
    OUTPUT:
    
Stable massive cardiomegaly with mild central vascular engorgement without frank pulmonary edema .