Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A large right apical mass and large left sixth rib mass appear grossly stable from the most recent CT scan . There is destruction of the left sixth rib associated with the mass . The lungs are otherwise clear without consolidation or edema . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal . Degenerative changes of the mid thoracic spine are stable .
    OUTPUT:
    
1 . Stable right upper lobe and left sixth rib masses . 2 . No evidence of pneumonia .