Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear within normal limits . There is no pleural effusion or pneumothorax . The lungs appear clear . Of note , there are multiple air - fluid levels in the left upper quadrant , probably colonic for the most , although some are potentially associated with small bowel . There is no clear evidence for small bowel dilatation or free air , however .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease . Air-fluid levels in the imaged epigastric region , predominantly along the splenic flexure of the colon , a non-specific finding for which clinical correlation is suggested .