Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been repositioning of a right upper extremity PICC which now terminates overlying the superior cavoatrial junction . Lung volumes are normal . Linear opacity overlying the right lower lobe likely represents subsegmental atelectasis . There is no pleural effusion , pneumothorax , or consolidation . Cardiomediastinal silhouette is normal . There is no osseous abnormality .
    OUTPUT:
    
1 . Right - sided PICC terminates overlying the superior caval atrial junction . 2 . Right basilar atelectasis .