Gastrointestinal System

{"ops":[{"insert":"Diagnosis and reasoning"},{"insert":"\n","attributes":{"header":1}},{"insert":"This middle aged gentleman has presented with chronic watery diarrhea - a very common condition which may be due to a myriad of causes.\n\nThe first step in his evaluation should be to determine if the diarrhea is organic or functional in origin (keeping in mind that the majority of such cases are functional).\n\nIn this patient\u0027s case, the profound weight loss (of over 5 kg) strongly suggests an organic cause, as does the predominantly nocturnal nature of the diarrhea.\n\nThe organic causes of chronic diarrhea can be broadly classified into inflammatory conditions (such as Crohn\u0027s disease), malabsorptive conditions (such as giardiasis, coeliac disease and Whipple\u2019s disease), and secretory conditions (such as diabetes, adrenal insufficiency, an"}]}

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