Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left - sided central venous catheter has been removed . There are low lung volumes . The heart size is mildly enlarged but stable . There is crowding of the bronchovascular structures without overt pulmonary edema . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is identified . No acute osseous abnormality is seen .
    OUTPUT:
    
Low lung volumes , but no acute cardiopulmonary abnormality .