A 26-year-old man comes to the physician for a 3-month history of diarrhea and abdominal cramping. He has 6-8 loose stools daily. Physical examination shows right lower quadrant tenderness. Vitals are within normal limits. Sudan Black B and Oil Red O stains of the stool are positive. Terminal ileum biopsy shows granulomata. Which of the following is the most likely explanation for these findings?
Bacterial overgrowth
Brush border disaccharidase deficiency
Exocrine pancreatic insufficiency
Ineffective reabsorption of bile salts
Rapid transit of hyperosmolar chyme
