Meningo-cortical manifestations of myelin oligodendrocyte glycoprotein antibody-associated disease: Review of a novel clinico-radiographic spectrum.

Myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) is an inflammatory demyelinating disease that is distinct from multiple sclerosis. Initial manifestations of MOGAD that were reported in the literature included optic neuritis, myelitis, brainstem demyelination and encephalitis, with emphasis placed on acute disseminated encephalomyelitis (ADEM) as the primary encephalitic presentation. In 2017, however, Ogawa et al. described four patients with seizures, unilateral cortical hyperintensities on brain magnetic resonance imaging T2-fluid-attenuated inversion recovery sequences, and anti-MOG positivity, indicating a potentially novel form of encephalitis in MOGAD. In 2019, we systematically reviewed the literature to better characterize this unique syndrome, which we referred to as unilateral cortical FLAIR-hyperintense Lesions in Anti-MOG-associated Encephalitis with Seizures (FLAMES). Subsequently, anti-MOG positivity in patients with a variety of cortical and meningeal disease presentations has been reported, indicating a broader spectrum of meningo-cortical manifestations in MOGAD that we review herein.

Budhram A ，Mirian A ，Sharma M 《Frontiers in Neurology》

Cerebral Cortical Encephalitis and Other Meningocortical Manifestations of Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease in Children: Case Series and Review of the Literature.

Carozza RB ，Bolte K ，Greene EB ，Reddy SB ，Vu NH ... -  《-》

"FLAMES: A novel burning entity in MOG IgG associated disease".

FLAMES is a new clinico-radiological sub entity of myelin oligodendrocyte glycoprotein (MOG) antibody associated disease (MOGAD). FLAMES is characterized by fluid attenuated inversion recovery (FLAIR) imaging showing hyperintense cortical lesions, in MOG associated Encephalitis with Seizures. MOGAD usually presents with optic neuritis, myelitis or acute disseminated encephalomyelitis and such rare focal cortical encephalitis like presentation can be mistaken as due to viral aetiology. FLAMES can present with unilateral or bilateral cortical encephalitis and we report a case where magnetic resonance angiography, susceptibility weighted imaging and perfusion studies were done and the utility of these additional imaging markers in diagnosing FLAMES is discussed.

Jain K ，Cherian A ，K P D ，P R ，Thomas B ，J N ... -  《-》

A burning encephalitis: Fluid-attenuated inversion recovery-hyperintense lesions in Anti-myelin oligodendrocyte glycoprotein-associated encephalitis with seizures in anti-myelin oligodendrocyte glycoprotein-associated encephalitis with seizures-A case rep

FLAMES, or fluid-attenuated inversion recovery-hyperintense lesions in anti-myelin oligodendrocyte glycoprotein (anti-myelin oligodendrocyte glycoprotein)-associated encephalitis with seizures, represents a rarely documented syndrome characterized by ambiguous features. Positioned within the spectrum of inflammatory demyelinating diseases of the central nervous system, it is regarded as a distinct subset of myelin oligodendrocyte glycoprotein antibody-associated disease, the latest classification in this domain. Myelin oligodendrocyte glycoprotein antibody-associated disease exhibits a diverse clinical spectrum, spanning from solitary optic neuritis or myelitis to multifocal central nervous system demyelination, manifesting as acute disseminated encephalomyelitis, or cortical encephalitis accompanied by seizures, delineating the fluid-attenuated inversion recovery-hyperintense lesions in anti-myelin oligodendrocyte glycoprotein-associated encephalitis with seizures syndrome. We present a compelling case study of a 30-year-old individual with a history of recurrent seizures initially diagnosed with mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes. However, the disease's progression more closely resembled self-resolving cerebral cortical encephalitis linked with myelin oligodendrocyte glycoprotein antibodies. In addition, we undertake a systematic review of literature cases to explore the diagnostic significance of magnetic resonance angiography, fluid-attenuated inversion recovery, and specialized markers such as diffusion-weighted imaging and perfusion in discerning fluid-attenuated inversion recovery-hyperintense lesions in anti-myelin oligodendrocyte glycoprotein-associated encephalitis with seizures syndrome and elucidating its distinctive characteristics.

El Ouali I ，Naggar A ，Berrada K ，Jiddane M ，Touarsa F ... -  《SAGE Open Medical Case Reports》

FLAIR Hyperintense Cortical Lesions in a 4-Year-Old Child with Myelin Oligodendrocyte Glycoprotein (MOG)-Associated Encephalitis and Seizures: A Case Report.

Bernardi L ，Mussi N ，Grandinetti R ，Turco E ，Piccolo B ，Ormitti F ，Principi N ，Esposito S ... -  《Children-Basel》