Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port - A - Cath tip terminates in the SVC . The cardiac and mediastinal contours are normal . The hila are unremarkable . Linear opacities in the lung bases are compatible with subsegmental atelectasis . No focal consolidation , pleural effusion or pneumothorax is visualized . There are no acute osseous abnormalities .
    OUTPUT:
    
Bibasilar subsegmental atelectasis .