Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low . There is no focal opacity , pulmonary edema , pleural effusion or pneumothorax . Prominence of the right hilus is unchanged since ___ . Mediastinal and cardiac contours are normal . There is no free air beneath the right hemidiaphragm . Cervical spine hardware is noted . There is no acute osseous abnormality .
    OUTPUT:
    
No acute cardiopulmonary process .