Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size , mediastinal and hilar contours are normal and without change since the prior study . Lungs are clear except for an unchanged pleural or extrapleural lesion in the periphery of the right mid lung which corresponds to an extrapleural lipoma in the right mid lung region on prior CT chest ___ ___ . No acute skeletal abnormalities are detected . Multilevel degenerative changes are present throughout the spine , and a post-traumatic deformity is noted at the level of the left second rib .
    OUTPUT:
    
1 . No findings to account for back pain . Dedicated spine imaging may be considered if warranted clinically . 2 . Extrapleural lipoma at the level of the fourth and fifth right anterior ribs , better characterized on prior CT chest ___ ___ .