Abstract
Congenital ataxias are a heterogeneous group of predominantly nonprogressive disorders characterized by hypotonia, developmental delay followed by the appearance of ataxia, and often associated with dysarthria, mental retardation, and atrophy of the cerebellum. We performed a genome-wide screen on a large inbred Lebanese family presenting a nonprogressive autosomal recessive congenital cerebellar ataxia associated with short stature (MIM 213200), already described by Mégarbané and colleagues.1 The disease locus was assigned to a 12.1 cM interval on chromosome 9q34-9qter between D9S67 and D9S312. Differential diagnosis with other hereditary ataxias linked to the same region is discussed.
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