Ataxia telangiectasia
نویسنده
چکیده
Onset of the disease is often during the second year of life: there is progressive cerebellar ataxia (initially truncal, with further peripheral extend); ataxia is a constant feature in this disease; oculomotor apraxia, dysarthria, and dystonia; leading to muscular atrophia. Telangiectasia: facial region exposed to sunlight, and eyes (conjunctiva). Combined immunodeficiency (in 70 %): thymus hypoplasia, and IgG2 and 4, IgA, IgE deficiency. Other features: growth retardation; hypogonadism; diabetes mellitus. Mental retardation may occur.
منابع مشابه
Role of Mitochondria in Ataxia-Telangiectasia: Investigation of Mitochondrial Deletions and Haplogroups
Ataxia-Telangiectasia (AT) is a rare human neurodegenerative autosomal recessive multisystem disease that is characterized by a wide range of features including, progressive cerebellar ataxia with onset during infancy, occulocutaneous telangiectasia, susceptibility to neoplasia, occulomotor disturbances, chromosomal instability and growth and developmental abnormalities. Mitochondrial DNA (mtDN...
متن کاملAutoimmune Hemolytic Anemia in a Patient with Probable Ataxia Telangiectasia: A Case Report
Background: Ataxia telangiectasia (AT) is one of the combined immunodeficiency syndromes with immunologic, neurologic, endocrinologic, hepatic and cutaneous abnormalities. Regarding the fact that autoimmune disorders; such as autoimmune hemolytic anemia (AIHA), are not generally expected in the course of AT, we present a patient with an unusual presentation of these two conditions. Case present...
متن کاملDystonia as presenting manifestation of ataxia telangiectasia : a case report.
Ataxia telangiectasia is a genetically inherited multisystem disorder with predominant feature being telangiectasia and cerebellar ataxia. In this report, a family of three siblings suffering from ataxia telangiectasia is described. The proband presented with dystonia and dystonic myoclonus, both of which are rare presenting features of ataxia telangiectasia.
متن کاملCerebral abnormalities in adults with ataxia-telangiectasia.
Ataxia-telangiectasia, an autosomal recessive disorder caused by defect of the ataxia-telangiectasia mutated gene, is characterized by progressive neurologic impairment with cerebellar atrophy, ocular and cutaneous telangiectasia, immunodeficiency, heightened sensitivity to ionizing radiation and susceptibility to developing lymphoreticular malignancy. Supratentorial brain abnormalities have be...
متن کاملAtaxia-telangiectasia.
Ataxia-telangiectasia is a complex syndrome that includes a very high cancer risk in children with a progressive cerebellar ataxia, the onset of which occurs in early infancy. Ocular telangiectasiae often do not appear until several years after the ataxia. The most common type of malignancy is lymphoma, usually of the B-cell type. Leukemias also occur. Failure to diagnose ataxia-telangiectasia ...
متن کاملگزارش سه مورد از سندرم آتاکسی- تلانژکتازی در یک خانواده (گزارش مورد)
Ataxia-telangiectasia syndrome is an autosomal recessive associated with combined immunodeficiency, progressive cerebellum ataxia, telangiectasia, ocolomotor apraxia, dysartheria and respiratory infections. In this study we reported three cases from a family with classical symptoms. Second sibling was died at 13 old years because severe respiratory infection but third and forth siblings have ...
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