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Arquivos de Neuro-Psiquiatria

Print version ISSN 0004-282XOn-line version ISSN 1678-4227

Abstract

CARDOSO, Juliana et al. Dandy-Walker syndrome in adult mimicking myasthenia gravis. Arq. Neuro-Psiquiatr. [online]. 2007, vol.65, n.1, pp.173-175. ISSN 0004-282X.  http://dx.doi.org/10.1590/S0004-282X2007000100037.

The Dandy-Walker syndrome (DWS) is a rare posterior fossa malformation. The DWS can occur associated with other brain or systemic malformations, but ocular abnormalities in this disease are rare and clinical findings mimicking myasthenia gravis have not been described to date. We report a 23-year-old woman who presented mild limitation of the ocular movements with progressive palpebral ptosis, which changed in intensity during the day. The investigation showed negative anti-acetylcholine receptor antibody, repetitive nerve stimulation and "Tensilon test", but the brain magnetic resonance image reveals DWS with hydrocephalus associated with calosal dysgenesis. The characteristic of disease, clinical manifestations and pathologic features, specially the clinical evaluation of ocular abnormalities in suspicion of DWS, including the MG in differential diagnosis are discussed.

Keywords : Dandy-Walker syndrome; hydrocephalus; myasthenia gravis; palpebral ptosis.

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