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Gac. méd. Caracas ; 121(1): 52-56, ene.-mar. 2013. ilus
Article in Spanish | LILACS | ID: lil-707540

ABSTRACT

La ataxia telangiectasia o síndrome de Louis Barr es un raro desorden neurodegenerativo de carácter autosómico recesivo, caracterizado por afectación multisistémica: neurológica, oftalmológica, inmunológica, endocrina, hepática y cutánea. El complejo clínico comprende la presencia de ataxia cerebelosa progresiva, telangiectasias oculocutáneas, enfermedad sinopulmonar crónica, elevada incidencia de neoplasias y una inmunodeficiencia combinada. Es causada por mutación en el gen ataxia telangiectasia, localizado en el locus 11 q22-23, lo que da lugar a deficiencias en su expresión. Su frecuencia se calcula en 1:80.000 y 1,4 % de la población es portadora del gen. Se presenta el caso de una paciente con documentación fotográfica.


The syndrome of ataxia telangiectasia or Louis Barr disease is a rare neurodegenerative disorder autosomal recessive, characterized by multisystem involvement: neurological, immunological, endocrine, ophthalmological, hepatic and cutaneous. The clinical complex includes the presence of progressive cerebellar ataxia, ocular and cutaneous telangiectasia, chronic sinopulmonar disease, high incidence of neoplasms and combined immunodeficiency. It is caused by mutation in the gene for ataxia telangiectasia, located in the q22-23 11 locus, which leads in its expression to numerous deficiencies. Its frequency is calculated in 1:80.000, and 1,4% of the population is a carrier of the gene. The case of a patient with photographic documentation is presented.


Subject(s)
Humans , Female , Child , Ataxia Telangiectasia/genetics , Ataxia Telangiectasia/pathology , Blepharitis/pathology , Conjunctivitis, Allergic/pathology , Dysarthria/etiology , Cerebellar Diseases/pathology , Facial Hemiatrophy/etiology
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