Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right infrahilar patchy opacity is unchanged from ___ and likely represents normal vascularity . Mild linear atelectasis is seen at the left lung base , which is new . Heart size is normal . No pleural effusion or pneumothorax . Osseous structures are grossly normal .
    OUTPUT:
    
No acute cardiopulmonary process .