Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are clear without any focal opacities , pleural effusion or pulmonary edema . There is no pneumothorax . The cardiac and mediastinal contours are normal . An expansile lesion involving the third right posterior rib is of indeterminate etiology . Please correlate for any clinical history of osseous malignancy ( i .e . multiple myeloma ) or prior imaging to assess stability .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Expansile lesion of the right third posterior rib of indeterminate etiology . Recommend clinical correlation for any history of osseous malignancy ( i .e . multiple myeloma ) and comparison with prior imaging to assess stability .