Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided central venous catheter tip terminates in the mid SVC . Moderate to severe cardiomegaly is present . The aorta is unfolded . The hilar contours are normal , and there is no pulmonary edema . Streaky opacity in the right lung base likely reflects atelectasis . No focal consolidation , pleural effusion or pneumothorax is identified . Mild degenerative changes are seen in the thoracic spine .
    OUTPUT:
    
Moderate to severe cardiomegaly . Right basilar atelectasis .