Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable upright chest radiograph shows elevation of the left hemidiaphragm which is poorly defined probably due to overlying subsegmental atelectasis . Air-filled splenic flexure and stomach are seen beneath this . A pigtail catheter projects above the left hemidiaphragm and no pneumothorax is seen . There is slight mediastinal shift rightward
    OUTPUT:
    
Pigtail catheter tip present projects above elevated left hemidiaphragm . No pneumothorax