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O papel da imunofluorescência direta na fisiopatologia e no diagnóstico diferencial da estomatite aftóide recorrente / The role of immunoflorescence in the physiopathology and differential diagnosis of recurrent aphthous stomatitis
Wilhelmsen, Niels Salles Willo; Weber, Raimar; Miziara, Ivan Dieb.
  • Wilhelmsen, Niels Salles Willo; USP. Faculdade de Medicina. BR
  • Weber, Raimar; USP. Faculdade de Medicina. BR
  • Miziara, Ivan Dieb; USP. Faculdade de Medicina. BR
Rev. bras. otorrinolaringol ; 74(3): 331-336, maio-jun. 2008. ilus, tab
Article in English, Portuguese | LILACS | ID: lil-487047
RESUMO
A estomatite aftóide recorrente é doença caracterizada por aparecimento periódico de aftas na mucosa oral, cuja etiologia e fisiopatologia não estão bem explicadas. Estudos recentes com imunofluorescência direta mostram resultados controversos. Alguns revelam que o distúrbio básico está relacionado à imunidade humoral, enquanto outros apontam alterações da imunidade celular. Formas atípicas de estomatite aftóide podem fazer diagnóstico diferencial com doenças vésico-bolhosas como pênfigo vulgar.

OBJETIVO:

Verificar a presença de imunecomplexos na mucosa de pacientes com estomatite aftóide e utilidade do método no diagnóstico diferencial com dermatopatias bolhosas. CASUÍSTICA E

MÉTODO:

23 pacientes portadores de estomatite aftóide, de modo prospectivo, foram incluídos no estudo. Todos foram submetidos à biópsia de mucosa sob anestesia local para retirada de dois fragmentos. Um deles foi enviado para exame histológico e, outro, para ser realizada a imunofluorescência direta.

RESULTADOS:

As 23 amostras no exame histológico revelaram processo inflamatório inespecífico ulcerado. As amostras enviadas para imunofluorescência resultaram negativas e apenas uma revelou presença de complemento em membrana basal.

CONCLUSÃO:

Baseado em nossos resultados, concluímos que pacientes portadores de EAR não apresentam depósitos de imunecomplexos na mucosa da cavidade bucal e a imunofluorescência é útil no diagnóstico diferencial entre a doença e dermatopatias bolhosas.
ABSTRACT
Recurrent aphthous stomatitis (RAS) is a disease characterized by the periodic appearance of aphthous lesions on the oral mucosa, of which etiology and physiopathology are not well explained. Recent studies with direct immunofluorescence show controversial results. Some reveal that the basic disorder is associated with humoral immunity, while others point to changes in cellular immunity. Atypical forms of aphthous stomatitis may have its differential diagnosis carried out with vesicobullous diseases, such as pemphigus vulgaris.

AIM:

Check the presence of immunocomplexes in the mucosa of patients with aphthous stomatitis and the usefulness of the differential diagnosis method with bullous skin diseases. MATERIALS AND

METHODS:

23 patients with aphthous stomatitis were prospectively included in the study. There were all submitted to mucosa biopsy under local anesthesia for the removal of two fragments. One of these was sent to histology and, the other to direct immunofluorescence.

RESULTS:

The 23 samples from the histology exam revealed an ulcerated inflammatory process. The samples referred to immunofluorescence resulted negative and only one showed the presence of complement in the basal membrane.

CONCLUSION:

Based on our results, we conclude that the patients with RAS do not show deposits of immunocomplexes in their oral cavity mucosa and immunofluorescence is useful in the differential diagnosis between this disease and bullous skin diseases.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Stomatitis, Aphthous / Immunoglobulin Isotypes / Skin Diseases, Vesiculobullous Type of study: Diagnostic study Limits: Adolescent / Adult / Aged / Female / Humans / Male Language: English / Portuguese Journal: Rev. bras. otorrinolaringol Journal subject: Otolaryngology Year: 2008 Type: Article Affiliation country: Brazil Institution/Affiliation country: USP/BR

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Full text: Available Index: LILACS (Americas) Main subject: Stomatitis, Aphthous / Immunoglobulin Isotypes / Skin Diseases, Vesiculobullous Type of study: Diagnostic study Limits: Adolescent / Adult / Aged / Female / Humans / Male Language: English / Portuguese Journal: Rev. bras. otorrinolaringol Journal subject: Otolaryngology Year: 2008 Type: Article Affiliation country: Brazil Institution/Affiliation country: USP/BR