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Acta Cytol. 2000 Jan-Feb;44(1):75-80.

North American paragonimiasis. A case report.

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  • 1Cleveland Clinic Foundation, Ohio 44195, USA.

Abstract

BACKGROUND:

Paragonimiasis is a parasitic infection with a predilection for pulmonary involvement. Paragonimus species occur throughout the world and exist in nature in a snail-crustacean-mammalian life cycle. Human disease is most frequently encountered in cultures that ingest raw or undercooked crustaceans. North American paragonimiasis, caused by an endemic Paragonimus species, Paragonimus kellicotti, predominantly causes disease in carnivorous and omnivorous animals but may cause human disease if the intermediate host, the crayfish, is ingested raw or undercooked.

CASE:

A previously healthy, 21-year-old male was infected with P kellicotti and developed parasitic hemoptysis. The disease was contracted through the ingestion of local, undercooked crayfish. Diagnosis was established through the morphologic examination of eggs in the cytologic preparation of bronchioalveolar lavage fluid. The patient was successfully treated with praziquantel and recovered without incident.

CONCLUSION:

Paragonimiasis is a cause of parasitic hemoptysis worldwide. Paragonimiasis is infrequently encountered in North America and is usually not considered in the differential diagnosis of hemoptysis unless specific risk factors are known. The cytologist or cytopathologist, therefore, may be the first to encounter the diagnostic eggs and should be familiar with this disease.

PMID:
10667165
[PubMed - indexed for MEDLINE]
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