malabsorption syndrome, a complex of symptoms resulting from disorders in the intestinal absorption of nutrients, characterized by anorexia, weight loss, abdominal bloating, muscle cramps, bone pain, and steatorrhea. Anemia, weakness, and fatigue occur because iron, folic acid, and vitamin B12 are not absorbed in sufficient amounts. Among the many conditions causing this syndrome are gastric or small bowel resection, celiac disease, tropical sprue, Whipple’s disease, intestinal lymphangiectasia, and cystic fibrosis. Treatment and prognosis are determined by the underlying condition. See also celiac disease, cystic fibrosis, hypoproteinemia, tropical sprue.