Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy tube is in unchanged position . Left PICC terminates in low SVC . An opacity in the right mid lung is noted . There is no pneumothorax or large pleural effusion . Right distal clavicular fracture is again noted .
    OUTPUT:
    
The opacity in the right mid lung could be atelectasis , however pulmonary contusion or pneumonia is also possible in correct clinical setting .