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Arq. neuropsiquiatr ; 72(6): 445-450, 06/2014. graf
Article in English | LILACS | ID: lil-712673

ABSTRACT

Neuromyelitis optica spectrum disorders (NMOSD) are characterized by severe optic neuritis and/or longitudinally extensive transverse myelitis, and some brain lesions are also unique to NMOSD. Serum autoantibodies against aquaporin-4 (AQP4) are detected in most cases of NMOSD. However, some patients with NMOSD remain seronegative despite repetitive testing during attacks with highly sensitive cell-based assays. The differential diagnosis of NMOSD is not restricted to multiple sclerosis and it includes many diseases that can produce longitudinally extensive myelitis and/or optic neuritis. We review the clinical features, imaging, and laboratory findings that can be helpful on the diagnostic work-up, discuss the differences between AQP4 antibody positive and negative patients with NMOSD, including features of NMOSD with antibodies against myelin oligodendrocyte glycoprotein.


O espectro da neuromielite óptica (NMOSD) é caracterizado por ataques graves de neurite óptica e mielite. Anticorpos séricos contra a aquaporina-4 (AQP4) são usualmente presentes nestes pacientes. Entretanto, alguns pacientes com NMOSD são seronegativos mesmo com testes repetidos em amostras obtidas durante ataques usando métodos altamente sensíveis baseados em células. O diagnóstico diferencial não é restrito à esclerose múltipla e inclui muitas doenças que podem produzir mielite longitudinalmente extensa e/ou neurite óptica. São abordadas as características clínicas, de imagem e de laboratório que podem ser úteis no diagnóstico, as diferenças entre os pacientes positivos para o anticorpo anti-AQP4 e os negativos, incluindo as características dos pacientes com NMOSD que possuem anticorpos contra a glicoproteína associada ao oligodendrócito.


Subject(s)
Aged , Female , Humans , Male , Middle Aged , Neuromyelitis Optica/diagnosis , Neuromyelitis Optica/immunology , /immunology , Autoantibodies/immunology , Diagnosis, Differential , Enzyme-Linked Immunosorbent Assay , Magnetic Resonance Imaging , Myelin-Oligodendrocyte Glycoprotein/immunology , Spinal Cord Injuries/diagnosis , Spinal Cord Injuries/immunology
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