Is Demodex really non-pathogenic?
Rev. Inst. Med. Trop. Säo Paulo
; 42(3): 171-3, May-Jun. 2000. ilus
Article
em En
| LILACS
| ID: lil-262698
Biblioteca responsável:
BR1.1
RESUMO
Although usually considered a non-pathogenic parasite in parasitological textbooks, Demodex folliculorum has been implicated as a causative agent for some dermatological conditions, such as rosacea-like eruptions and some types of blepharitis. Several anecdotal reports have demonstrated unequivocal tissue damage directly related to the presence of the parasite. However, this seems to be exceedingly rare, in contrast with the marked prevalence of this infestation. We have had the opportunity to observe one of such cases. A 38-year-old woman presented with rosacea-like papular lesions in her right cheek. Histopathological examination revealed granulomatous dermal inflammation with a well-preserved mite phagocytized by a multinucleated giant cell. This finding may be taken as an evidence for the pathogenicity of the parasite, inasmuch as it does not explain how such a common parasite is able to produce such a rare disease.
Texto completo:
1
Índice:
LILACS
Assunto principal:
Granuloma de Células Gigantes
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Bochecha
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Rosácea
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Dermatoses Faciais
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Ácaros
Tipo de estudo:
Risk_factors_studies
Limite:
Adult
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Female
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Humans
Idioma:
En
Revista:
Rev. Inst. Med. Trop. Säo Paulo
Assunto da revista:
MEDICINA TROPICAL
Ano de publicação:
2000
Tipo de documento:
Article