What are miscellaneous causes of fever of unknown origin (FUO)?

Updated: Mar 01, 2018
  • Author: Sandra G Gompf, MD, FACP, FIDSA; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Miscellaneous Causes of FUO are as follows:

  • Most common: Cirrhosis (due to portal endotoxins), drug fever
  • Less common: Thyroiditis, Crohn disease (regional enteritis)
  • Least common: Pulmonary emboli, hypothalamic syndrome, familial periodic fever syndromes, cyclic neutropenia, factitious fever (especially in those experienced with the healthcare field)

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