Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Severe cardiomegaly is unchanged . No focal consolidation is seen concerning for pneumonia . No convincing evidence for edema . Mild congestion difficult to exclude . There is no pleural effusion or pneumothorax . AICD leads again noted extending to the region the right atrium , right ventricle and coronary sinus . No acute bony abnormality . No free air below the right hemidiaphragm .
    OUTPUT:
    
Severe cardiomegaly and possible mild congestion .