Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Post pyloric feeding tube is seen , coursing beyond the stomach , off the inferior borders of the film . The cardiac , mediastinal and hilar contours are unchanged . There is slight rightward shift of midline structures which is stable . Moderate left pleural effusion is re - demonstrated , similar in size , with adjacent atelectasis . Linear opacity in the right lung base is new , and compatible with subsegmental atelectasis . Pulmonary vasculature is normal , and there is no pneumothorax . Degenerative changes are noted within the lumbar spine , and levoscoliosis of the thoracic spine is again seen .
    OUTPUT:
    
Unchanged moderate left pleural effusion . Right basilar subsegmental atelectasis .