Pentastomiasis (porocephalosis, linguatulosis/linguatuliasis)

David A. Warrell

in Oxford Textbook of Medicine

Published on behalf of Oxford University Press

Published in print May 2010 | ISBN: 9780199204854
Published online May 2012 | e-ISBN: 9780199570973 | DOI:

Series: Oxford Textbooks

Pentastomiasis (porocephalosis, linguatulosis/linguatuliasis)

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  • Medical Microbiology and Virology
  • Infectious Diseases


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Pentastomiases or porocephaloses are zoonotic infections caused by maxillopod crustacean parasites (subclass Pentastomida).

Linguatula serrata (‘tongueworm’)—this is cosmopolitan, infecting upper respiratory tracts of the definitive hosts, canids. Nymphs discharged in nasal secretions are taken up by herbivorous animals, the intermediate hosts, which pass on the infection when they are eaten. Humans may be infected by eating raw liver and other offal of sheep, goats, and other animals, soon after which acute allergic obstructive nasolaryngopharyngitis (halzoun or marrara syndrome) may develop. Larvae can be found in sputum and vomitus....

Chapter.  2217 words.  Illustrated.

Subjects: Medical Microbiology and Virology ; Infectious Diseases

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