Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without consolidation or edema . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal . Severe degenerative changes are noted in the right shoulder with joint space loss , likely reflecting chronic rotator cuff injury . The left shoulder has mild degenerative changes .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Severe degenerative changes in the right shoulder .