Paragonimus westermani


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Par·a·gon·i·mus wes·ter·man·'i

the bronchial or lung fluke; a species that causes paragonimiasis, found chiefly in Japan, Korea, Taiwan, China, the Philippines, and Thailand; eggs are coughed up in sputum or swallowed and passed in the feces; miracidia invade Melania snails, and produce large numbers of stumpy-tailed cercariae that leave the snail and crawl into muscles and viscera of crayfish or crabs and encyst; in humans the excysted worms invade the wall of the gut and migrate through the diaphragm into the lungs; the developing parasites cause an intense inflammatory reaction and eventually induce fibrous-walled nodules that usually contain a pair of adult worms, along with exudate, eggs, and remains of red blood cells; the fibroparasitic nodules may become contiguous and form multiloculated cystlike structures; in some instances, the flukes involve the brain, liver, peritoneum, intestine, or skin.
Synonym(s): Paragonimus ringeri
Farlex Partner Medical Dictionary © Farlex 2012
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PARAGONIMUS WESTERMANI (×4)
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PARAGONIMUS WESTERMANI (×4)

Paragonimus westermani

The lung fluke, a common parasite of certain mammals including humans, dogs, cats, pigs, and minks. Human infestation occurs through eating partially cooked crabs or crayfish, the second intermediate host. This infestation is endemic in certain parts of Asia. See: illustration
illustration
See also: Paragonimus
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
A rather rare finding in pulmonary imaging, the cavity formation may result from bacterial infections such as microaerophilic streptococci, viridans streptococci, Klebsiella pneumoniae, Staphylococcus aureus, Pseudomonas aeruginosa, Haemophilus influenzae, Acinetobacter species, Escherichia coli, Legionella species, Fusobacterium necrophorum, Nocardia asteroides, mycobacteria such as Mycobacterium tuberculosis, nontuberculous mycobacteria and Mycobacterium avium complex, fungi such as Cryptococcus neoformans, Coccidioides, Aspergillus and mucormycosis, parasites such as Paragonimus westermani and Echinococcus genus, and viral infections such as papilloma virus [1,2].
IgG to other parasites including Paragonimus westermani , Paragonimiasis sichuanensis , Schistosoma japonicum , and Spirometra mansoni were all negative.
More recently elevated serum IgG4 levels were reported in two cases of pulmonary Paragonimus westermani infection [9].
japonicum and Paragonimus westermani, contain less repeats [32,33].
Melanoides tuberculata is medically important because this specie serve as intermediate host for the human lung fluke, Paragonimus westermani.
Prevalence of Paragonimus westermani in some Ulchin school children.
tuberculata acts as first intermediate host for human lung fluke Paragonimus westermani [2].