A 22-year-old female is being evaluated for diarrhea, steato…
A 22-year-old female is being evaluated for diarrhea, steatorrhea, iron deficiency anemia and elevated liver function tests. She has intermittent 2/10 vague, dull abdominal pain “lasting minutes to hours” that gets better with defecation. She denies traveling abroad or abusing laxatives but cannot tolerate certain foods and beverages. She is currently undergoing evaluation for possible celiac disease. Anti-tissue transglutaminase, anti-endomysial antibodies, endoscopic visualization, and biopsies are all negative for celiac disease. IgE testing for wheat allergy is also negative. What is the probable diagnosis and what should be done next?