Linguatula serrata

Lin·guat·u·la ser·ra·'ta

a species most common in Europe, but also found in the U.S., South America, and probably elsewhere; the adult is a whitish, soft, flattened, anulated worm equipped with hooks by which it attaches itself to the nasal mucosa of dogs and other canids; the larvae develop in the liver and lymph nodes of rodents, swine, cattle, and sometimes humans and other primates.
Synonym(s): Linguatula rhinaria

Linguatula serrata

(ling-gwa′chŭ-lă se-rāt′ă)
An arthropod parasite in snakes, commonly known as the tongue worm. Its larvae, nymphs, and adults occasionally infect humans. Ingested infective larvae migrate to the nasal passages and may cause a parasitic nasopharyngeal obstruction known as linguatulosis.


a genus of parasites in the class Pentastomida.

Linguatula serrata
adults occur in the nasal cavities of canines and larvae in mesenteric lymph nodes of the horse, goat, sheep and rabbit. Causes sneezing and a bloody nasal discharge. The larval stages may be confused with tuberculosis.
References in periodicals archive ?
More severe manifestations similar to parasitic pharyngitis caused by Fasciola hepatica or Linguatula serrata seem to be absent, although 1 patient had symptoms of asphyxia (9).
Linguatula serrata and Armillifer armillatus were associated with 99% of the reported cases of human pentastomiasis (Drabick, 1987; Pare, 2008).
The species Linguatula serrata belongs to the Pentastomida, a still-enigmatic group of worm-like, bloodsucking parasites that inhabit the upper respiratory tract of terrestrial, carnivorous vertebrates, mostly reptiles and birds; L.
The Marrara syndrome: a hypersensitivity reaction of the upper respiratory tract and buccopharyngeal mucosa to nymphs of Linguatula serrata.
An isolated case of ocular parasitosis caused by Linguatula serrata.
Ocular linguatuliasis in Ecuador: case report and morphometric study of the larva of Linguatula serrata.
crotali and Linguatula serrata (18S rRNA only as no cox entry existed).
Of the many pentastomid species, only a few, including Linguatula serrata, infect humans.
Hepatic granuloma in a man from North America caused by a nymph of Linguatula serrata.
Hepatic granuloma due to a nymph of Linguatula serrata in a woman from Michigan: a case report and review of the literature.
A nodular pulmonary lesion due to Linguatula serrata in an HIV-positive man.