Is Demodex really non-pathogenic?
Rev. Inst. Med. Trop. Säo Paulo
; Rev. Inst. Med. Trop. Säo Paulo;42(3): 171-3, May-Jun. 2000. ilus
Article
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| LILACS
| ID: lil-262698
Biblioteca responsable:
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
Asunto principal:
Granuloma de Células Gigantes
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Mejilla
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Rosácea
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Dermatosis Facial
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Ácaros
Tipo de estudio:
Risk_factors_studies
Límite:
Adult
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Female
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Humans
Idioma:
En
Revista:
Rev. Inst. Med. Trop. Säo Paulo
Asunto de la revista:
MEDICINA TROPICAL
Año:
2000
Tipo del documento:
Article