Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes . Heart size is at the upper limits of normal and unchanged . Again seen is a right upper mediastinal contour abnormality compatible with previously characterized cyst . The mediastinal and hilar contours are otherwise normal . The pulmonary vasculature is normal . Lungs are clear . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities . Multilevel degenerative changes of the visualized thoracolumbar spine . Right neck surgical clips .
    OUTPUT:
    
No acute cardiopulmonary abnormality .