Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0024523 (malabsorption)
 7,319 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Significant differences exist in the prevalence of most gastroenterological emergencies in tropical compared with temperate countries. Both ethnic and environmental (often clearly defined geographically) factors are relevant. The major oesophageal lesions which can present acutely in tropical countries are varices and carcinoma; bleeding and obstruction are important sequelae. Peptic ulcer disease (and its complications), often associated (not necessarily causally) with Helicobacter pylori infection, has marked geographical variations in incidence. Emergencies involving the small intestine are dominated by severe dehydration, and its sequelae, resulting from secretory diarrhoea, most notably cholera. However, enteritis necroticans ('pig bel' disease), paralytic ileus (sometimes caused by antiperistaltic agents) and obstruction (secondary to luminal helminths, volvulus and intussusception) are other important problems, especially in infants and children. Enteric fever is occasionally complicated by perforation and haemorrhage; the former (which is notoriously difficult to manage) is accompanied by significant mortality. Ileocaecal tuberculosis is a major cause of right iliac fossa pathology--sometimes associated with malabsorption; amoeboma is an important clinical differential diagnosis. The colon can be involved in invasive Entamoeba histolytica infection (which, like complicated enteric fever, is difficult to manage if the fulminant form, with perforation, ensues), shigellosis, volvulus and intussusception. Acute colonic dilatation occasionally follows Salmonella sp., Shigella sp., Campylobacter jejuni, Yersinia enterocolitica and rarely E. histolytica infections. Acute hepatocellular failure is a major cause of morbidity and mortality in the tropics and subtropics. It usually results from viral hepatitis (HBV, sometimes complicated by HDV, and HCV), but there is a long list of differential diagnoses. Hepatotoxicity resulting from herbs, chemotherapeutic agents or alcohol also occurs not infrequently. Chronic liver disease and its sequelae (often long-term results of viral hepatitis) are commonplace. Haematemesis and hepatocellular failure are usually very difficult to manage due to a lack of sophisticated support techniques in developing countries. Invasive hepatic amoebiasis usually responds well to medical management; however, spontaneous perforation can occur and the consequences of this are serious. Pyogenic liver abscess, although far less common than amoebic 'abscess', carries a bad prognosis whatever the method(s) of management. Hydatidosis and schistosomiasis also involve the liver, and helminthiases are important in the context of biliary tract disease. Gall stones are unusual in most tropical settings. Acute pancreatitis is overall unusual, but chronic calcific pancreatitis can present as an acute abdominal emergency.
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PMID:Gastroenterological emergencies in the tropics. 176 26

Salmonelloses are bacterial infections of the faecal peril; they are endemic in some regions of the world. They can colonize almost any organ hematogenously, hence, severe forms may be observed. We report a case of typhoid fever in a 16-year old young adolescent with no medical history, sexually transmitted diseases or sexual intercourses, presenting with necrotic scrotal ulcerations evolving over the past 3 weeks in a context of fever, diarrhoea, weight loss and alteration of the general state. Paraclinical assessment showed 7g/dl hypochromic microcyticanemia with target cells in blood smear and normal hemoglobin electrophoresis, biologic inflammatory syndrome, malabsorption syndrome, cytolysis and hepatic cholestasis 20 times above the normal, hepatosplenomegaly, normal viral serologic testing (HBV, HCV, HIV, EBV and CMV) and positive testing for salmonella. The patient underwent 3 weeks of therapy with fluoroquinolones with favorable evolution. Dermatologic manifestations are frequent and polymorphic in typhoid fever; however cutaneous and, in particular, scrotal ulcerations are rarely reported. Differential diagnosis may be based on sexually transmitted diseases, inflammatory bowel diseases or hematologic disorders. More often diarrhoea is reduced or absent and patient's outcome depends on antibiotic. Diagnostic confirmation in patients with an atypical clinical picture, as in the case of our patient, is based on serology. Treatment is based on proper and prolonged antibiotic therapy and on prophylaxis measures to neighbouring.
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PMID:[A rare and atypical cause of scrotal ulcerations]. 2987 68