Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are mildly hyperexpanded and clear . Mediastinal contours , hila , and cardiac borders are normal . No pleural effusion . Re-demonstrated are expansile lesions of the right clavicle and left ribs consistent with known myeloma . Compression fracture of a thoracic vertebrae is stable .
    OUTPUT:
    
No evidence of pneumonia .