Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port - A - Cath tip terminates in the right atrium , unchanged . The heart size is normal . The mediastinal and hilar contours are stable with calcification of the aortic knob noted . Pulmonary vascularity is normal . There is minimal atelectasis in the right lung base . No focal consolidation or pneumothorax is visualized . There are no pleural effusions . Deformity of the right lateral 7th rib is likely related to a pathologic fracture through an osseous metastasis , unchanged . No acute osseous abnormalities are otherwise demonstrated . There are multilevel degenerative changes in the thoracic spine .
    OUTPUT:
    
Mild right basilar atelectasis . Deformity of the right lateral 7th rib likely reflects a pathologic fracture through a known osseous metastasis , and appears unchanged .