Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomegaly as previously . No significant pulmonary vascular congestion . External AICD again seen with no change in position . Also unchanged is the endotracheal tube which is above the carina and the NG tube which is in the stomach .
    OUTPUT:
    
Cardiomegaly . No CHF or atelectasis .