Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The exam is limited by technique . Within the limitations , the lungs are clear without consolidation or edema . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal . Degenerative changes are noted in the right shoulder .
    OUTPUT:
    
No acute cardiopulmonary process ; specifically , no evidence of pneumonia .