title: Selected disorders of malabsorption.
abstract: Malabsorption syndrome encompasses numerous clinical entities that result in chronic diarrhea, abdominal distention, and failure to thrive. These disorders may be congenital or acquired and include cystic fibrosis and Shwachman-Diamond syndrome; the rare congenital lactase deficiency; glucose-galactose malabsorption; sucrase-isomaltase deficiency; adult-type hypolactasia leading to acquired lactose intolerance. The pathology may be due to impairment in absorption or digestion of nutrients resulting in Nutritional deficiency, gastrointestinal symptoms, and extra gastrointestinal symptoms. Treatment is aimed at correcting the deficiencies and symptoms to improve quality of life. Common disorders of malabsorption celiac disease, pernicious anemia, and lactase deficiency are discussed in this article.
authors.affiliation: Department of Family and Community Medicine, University of Texas Southwestern Medical Center, 5909 Harry Hines Boulevard, Suite 100, Dallas, TX 75390-9067, USA. Zafreen.Siddiqui@UTSouthwestern.edu
authors.forename: Zafreen
authors.initials: Z
authors.lastname: Siddiqui
authors.forename: Amimi S
authors.initials: AS
authors.lastname: Osayande
mesh_terms: D000752:Anemia, Pernicious / Q000453:epidemiology / Q000503:physiopathology / Q000628:therapy; D002446:Celiac Disease / Q000453:epidemiology / Q000503:physiopathology / Q000628:therapy; D003106:Colon / Q000503:physiopathology; D004777:Environment; D006801:Humans; D043322:Lactase / Q000172:deficiency; D008286:Malabsorption Syndromes / Q000453:epidemiology / Q000503:physiopathology* / Q000628:therapy*; D010808:Physical Examination; D012307:Risk Factors
chemical_list: D043322:Lactase