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Posts tagged: lesions

Diffuse and heterogeneous T2-hyperintense lesions in the splenium are characteristic of neuromyelitis optica.


Clinical Study Brain MRI abnormalities in Brazilian patients with neuromyelitis optica Cíntia Elias Piresa, b, , , Christianne Martins Correa da Silvaa, Fernanda Cristina Rueda Lopesa, b, Fabiola Rachid Malfetanoa, Valéria C.S.R. Pereiraa, Tadeu Kubob, Paulo R.V. Bahiaa, Soniza Vieira Alves-Leona, Emerson L.


Hypothermia, Hypotension, Hypersomnia, and Obesity Associated With Hypothalamic Lesions in a Patient Positive for the Anti-aquaporin 4 Antibody: A Case Report and Literature Review. Suzuki K, Nakamura T, Hashimoto K, Miyamoto M, Komagamine T, Nagashima T, Izawa N, Kanbayashi T, Takahashi T, Hirata K. Abstract OBJECTIVE To describe a patient positive for the anti-aquaporin 4 antibody with hypothalamic lesions showing hypothermia, hypotension, hypersomnia, and obesity.


? NARCOMS Report-2007 Registry Update Optic Neuritis in Multiple Sclerosis ? Neuromyelitis Optica Dean M. Wingerchuk, MD, MSc, FRCP(C) A Historical Perspective on NMO Neuromyelitis optica (NMO), also known as Devic’s disease, was identified more than one hundred years ago as a severe disorder affecting the spinal cord (causing paralysis) and both optic nerves (causing blindness).


We reported recently that intracerebral administration of NMO-IgG with human complement produces neuromyelitis optica (NMO) lesions in mice. We examined the role of T cells in the formation of NMO lesions by comparing brain histopathology in wildtype and nude mice. Brains were co-injected with IgG from NMO patients and human complement.


Neuromyelitis optica is an inflammatory demyelinating disease of the central nervous system associated with autoantibodies against the glial water channel protein aquaporin-4. It has recently been reported that immunoglobulin from neuromyelitis optica patients injected peripherally does not cause lesions in naive rats, but only when pre-existing central nervous system inflammation is present


Neuromyelitis optica (NMO) is an inflammatory demyelinating disorder characterized by optic neuritis and acute myelitis. A parainfectious pathogenesis may play a partial role in the development of this disorder.


OBJECTIVE:To describe the clinical, molecular, and neuropathological findings of a patient with aquaporin 4-positive relapsing myelitis who developed extensive brain involvement followed by death. DESIGN: Case report.


OBJECTIVE: The purpose of this study was to explore brain MRI findings in neuromyelitis optica (NMO) and to investigate specific brain lesions with respect to the localization of aquaporin-4 (AQP-4). MATERIALS AND METHODS: Forty admitted patients (36 women) who satisfied the 2006 criteria of Wingerchuk et al. for NMO were included in this study


Recurrent attacks of optic neuritis and myelitis are the hallmarks of both neuromyelitis optica (NMO) and multiple sclerosis (MS). NMO immunoglobulin G (NMO-IgG), which recognizes astrocytic aquaporin-4 (AQP4) water channels, is a specific serum autoantibody that distinguishes NMO from MS. The pathogenic role of the anti-AQP4 antibody (AQP4-Ab, NMO-IgG) in NMO has been speculated based on several studies in vitro.


OBJECTIVE: Severe inflammation and astrocyte loss with profound demyelination in spinal cord and optic nerves are typical pathological features of neuromyelitis optica (NMO).


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