Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild - to - moderate cardiomegaly is unchanged . Linear right basilar opacity most likely represents atelectasis . There is mild vascular congestion . There is no pleural effusion or pneumothorax . There is no acute osseous abnormality .
    OUTPUT:
    
1 . Stable cardiomegaly . 2 . Mild vascular congestion . 3 . Right basilar linear opacity , most consistent with atelectasis , followup as clinically indicated .