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2698 pages added, reviewed or updated during the last month (last updated: 12/4/2021)


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anorexia

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Anorexia is the absence of appetite, from the Greek; an, meaning the opposite of, and orexis meaning appetite.

It is a very non-specific symptom. Anorexia may be present in:

  • malignancy
    • localised to gastrointestinal tract e.g. carcinoma stomach, carcinoma colon
    • disseminated malignancy
  • infection e.g.:
    • localised to gastrointestinal tract e.g. appendicitis, intestinal tuberculosis
    • distant sites e.g. pneumonia
  • inflammatory diseases e.g.:
    • Crohn's disease
    • Bechet's disease
  • right ventricular failure
  • metabolic diseases:
    • uraemia
    • diabetic ketoacidosis
    • lactic acidosis
    • hypercalcaemia
    • hyponatraemia
  • drugs:
    • cytotoxic chemotherapy
  • psychiatric disorders such as anorexia nervosa

It may also be a feature of many other diseases.

Last reviewed 01/2018

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