TOPICS: Intussusception, telescoping, peristalsis, leading edge, lymphoid hyperplasia, rotavirus, tumor, intermittent abdominal pain, vomiting, currant jelly stools, small bowel infarction, transmural infarction, thrombosis, embolism, SMA, mesenteric vein, mucosal infarction, hypotension, bloody diarrhea, decreased bowel sounds, chronic mesenteric ischemia, atherosclerosis, mesenteric arteries, stable angina, epigastric pain, antacids, food aversion, weight loss, lactose intolerance, lactase, brush border enzyme, dairy consumption, congenital, autosomal recessive, celiac disease, gluten, wheat, grains, gliadin, tissue transglutaminase, MHC class II, helper T cells, HLA DQ2, HLA DQ8, IgA, IgG, endomysium, tTG, gliadin, failure to thrive, bloating, dermatitis herpetiformis, dermal papillae, microabscesses, fibrin, neutrophils, gluten-free diet, small bowel carcinoma, T-cell lymphoma, tropical sprue, infectious diarrhea, antibiotics, jejunum, ileum, whipple disease, tropheryma whippeli, lamina propria, lacteals, chylomicrons, fat malabsorption, steatorrhea, PAS positive, synovium, carcinoid tumor, neuroendocrine cells, chromogranin, appendix, submucosal polyp-like nodule, serotonin, MAO, 5-HIAA, metastasis, carcinoid syndrome, bronchospasm, diarrhea, flushing, alcohol, stress, carcinoid heart disease