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Síndrome de Waardenburg tipo I: relato de caso / Waardenburg syndrome type I: case report
Silva, Patricia Capua Vieira da; Rangel, Paula; Couto Júnior, Abelardo.
  • Silva, Patricia Capua Vieira da; Instituto Benjamin Constant. Rio de Janeiro. BR
  • Rangel, Paula; Instituto Benjamin Constant. Rio de Janeiro. BR
  • Couto Júnior, Abelardo; Instituto Benjamin Constant. Rio de Janeiro. BR
Arq. bras. oftalmol ; 74(3): 209-210, May-June 2011. ilus, tab
Article in Portuguese | LILACS | ID: lil-598317
RESUMO
A síndrome de Waardenburg tipo I é uma desordem auditivo-pigmentária que inclui, entre outros, perda auditiva neurossensorial congênita não progressiva, telecanto, distúrbios pigmentares de íris, cabelo e pele. Indivíduos afetados podem ter maior risco de defeitos no tubo neural, fendas labial e palatina, anormalidades nos membros e doença de Hirschsprung. O diagnóstico é clínico, sendo necessários dois critérios maiores ou um maior e dois menores. PAX3 é o único gene conhecido associado à síndrome, sendo, entretanto, mais usado no aconselhamento genético. Quanto ao diagnóstico diferencial, podemos citar outras causas de perda auditiva neurossensorial congênita não progressiva, outros tipo de síndrome de Waardenburg, piebaldismo, albinismo, vitiligo e síndrome de Teitz. Neste trabalho, apresenta-se um paciente masculino de 11 anos com diagnóstico de síndrome de Waardenburg tipo I. Ressalta-se a importância do oftalmologista no auxílio do diagnóstico deste raro quadro sistêmico, uma vez que inclui algumas alterações oftalmológicas. O diagnóstico precoce da síndrome permite estimulação adequada para a perda auditiva, assim como medidas preventivas em caso de gestantes afetadas no aconselhamento genético.
ABSTRACT
Waardenburg syndrome (WS) type I is a non-progressive auditory-pigmentary disorder comprising congenital sensorineural hearing loss and pigmentary disturbances of the iris, hair, and skin, along with dystopia canthorum (lateral displacement of the inner canthi). Affected individuals may have higher risk of neural tube defects, cleft lip and palate, limb abnormalities, and Hirschsprung disease. The diagnosis is clinical and should be considered if the individual has two major or one major plus two minor criteria. PAX3 is the only known gene associated to the syndrome. Nevertheless, its use is mostly for genetic counseling. Regarding different diagnosis, we may list other causes of non-progressive auditory-pigmentary disorder comprising congenital sensorineural hearing loss, other types of Waardenburg syndrome, piebaldism, albinism, vitiligo and Teitz syndrome. This paper presents a case of an eleven year old boy with deafness and ophthalmologic alterations, based on his files and exams. It reinforced the importance of the ophthalmologist contributing for the diagnosis of this rare systemic disease, as it includes some ophthalmologic alterations. We remind that the early diagnosis allows adequate stimulation for the hearing loss, as well as preventive measures in case of pregnant women affected by genetic counseling.
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Full text: Available Index: LILACS (Americas) Main subject: Waardenburg Syndrome Type of study: Screening study Limits: Child / Humans / Male Language: Portuguese Journal: Arq. bras. oftalmol Journal subject: Ophthalmology Year: 2011 Type: Article Affiliation country: Brazil Institution/Affiliation country: Instituto Benjamin Constant/BR

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Full text: Available Index: LILACS (Americas) Main subject: Waardenburg Syndrome Type of study: Screening study Limits: Child / Humans / Male Language: Portuguese Journal: Arq. bras. oftalmol Journal subject: Ophthalmology Year: 2011 Type: Article Affiliation country: Brazil Institution/Affiliation country: Instituto Benjamin Constant/BR