Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided AICD device is noted with leads terminating in the regions of the right atrium , right ventricle and coronary sinus , unchanged . Severe cardiomegaly is again noted . Mediastinal and hilar contours are unchanged . No pulmonary edema is demonstrated . No focal consolidation , pleural effusion or pneumothorax is present . Atelectasis is noted in both lung bases . There are no acute osseous abnormalities .
    OUTPUT:
    
Severe cardiomegaly without congestive heart failure or pneumonia .