PART 14: Disorders of the Gastrointestinal System
SECTION 1 Disorders of the Alimentary Tract
294 Disorders of Absorption
 | Figure 294-1 Schematic representation of the enterohepatic circulation of bile acids. Bile acid synthesis is cholesterol catabolism and occurs in the liver. Bile acids are secreted in bile and are stored in the gallbladder between meals and at night. Food in the duodenum induces the release of cholecystokinin, a potent stimulus for... |
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 | Figure 294-2 Schematic representation of lipid digestion and absorption. Dietary lipid is in the form of long-chain triglycerides (LCTs). The overall process can be divided into (1) a digestive phase that includes both lipolysis and micelle formation requiring pancreatic lipase and conjugated bile acids, respectively, in the duodenum; (2) an... |
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 | Figure 294-3 Barium contrast small-intestinal radiologic examinations. A. Normal individual. B. Celiac sprue. C. Jejunal diverticulosis. D. Crohn's disease. (Courtesy of Morton Burrell, MD, Yale University; with... |
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 | Figure 294-4 Small-intestinal mucosal biopsies. A. Normal individual. B. Untreated celiac sprue. C. Treated celiac sprue. D. Intestinal lymphangiectasia. E. Whipple's disease. F. Lymphoma. G. Giardiasis. (Courtesy of Marie Robert, MD, Yale University; with... |
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