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Arquivos de Neuro-Psiquiatria

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Abstract

ARAUJO, ABELARDO DE QUEIROZ-CAMPOS et al. Syringohydromyelia or HTLV-I-associated myelopathy/tropical spastic paraparesis: a diagnostic challenge (case report). Arq. Neuro-Psiquiatr. [online]. 1999, vol.57, n.2A, pp. 284-287. ISSN 0004-282X.  http://dx.doi.org/10.1590/S0004-282X1999000200019.

Human T-cell lymphotropic virus type I (HTLV-I) associated myelopathy / tropical spastic paraparesis (HAM/TSP) is the most common chronic myelopathy in Brazil. We present the case of a 53 year old man that fulfilled the diagnostic criteria for HAM/TSP but had at the magnetic resonance imaging (MRI) of the spinal cord evidences of syringohydromyelia at the C6-C7 and D2-D7 levels along with Chiari type 1 malformation. The clinical picture was more typical of HAM/TSP than of syringohydromyelia, which was probably asymptomatic. The present case clearly demonstrates that serology and neuroimaging should be always used together. We conclude that, specially in places where HTLV-I is endemic, every patient with a spastic paraparesis, even with a radiological picture suggestive of a structural spinal cord lesion, should have a screening test for HTLV-I. The clinical picture must dictate the final direction of the diagnosis.

Keywords : HTLV-I; tropical spastic paraparesis; syringomyelia; hydromyelia; magnetic resonance imaging; differential diagnosis.

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