Q. A 72-year-old woman presents to the clinic with a 3-month history of increasing episodes of flatulence and abdominal cramps. She explains that she seems to experience these symptoms most frequently after consuming dairy products like milk or ice cream. The patient denies any bloody stools, unintended weight loss, or recent travels. The physician considers performing an intestinal biopsy. What is the most likely finding on an intestinal biopsy for this patient based on her symptoms?