Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy in standard position . Right - sided PICC has been removed . The lung volumes have decreased with subsegmental basal atelectasis . Low lung volumes cause crowding of the bronchovascular markings . No interstitial edema . No pneumothorax .
    OUTPUT:
    
Low lung volumes with subsegmental atelectasis .