Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Trachea is slightly more displaced to the right partly caused by the tilted position of the patient and left lower lung atelectasis . Left subclavian dialysis catheter has been removed . Tracheal coronal diameter is narrowed as shown on previous CT . There is no pulmonary edema . There is no pleural effusion or pneumothorax . There is dense opacity projecting in the left upper quadrant of the abdomen measuring 18 mm , possibly in the bowel .
    OUTPUT:
    
1 . There is no pulmonary edema . 2 . The trachea is slightly more displaced to the right , probably due to the position of the patient and volume loss . However , considering the fact that the dialysis catheter has been recently removed , mediastinal hematoma has to be considered but is less likely . A followup chest x-ray has been suggested to the medical team .