Abstract

Symptom onset in Neuromyelitis Optica spectrum disorder (NMOSD) is often acute, while sudden onset is rare and suggests vascular causes. We report the case of a 63-year-old woman who had two sudden attacks, blindness in the left eye and weakness of the lower limbs. The presence of a diencephalic hypersignal around the third ventricle and a bright spotty lesion on the MRI had evoked the NMOSD diagnosis which was confirmed by positive anti-aquaporin 4 antibodies in the serum. The patient was treated with cyclophosphamide with no relapses after 6 months of treatment. Few case reports have been published on this subject, testifying to the rarity of this "pseudo-vascular" mode of revelation of NMOSD, which may be a source of diagnostic error or delay.

Keywords: Neuromyelitis Optica spectrum disorder, pseudo-vascular, spinal cord infarction, myelitis

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Haddouali, K., Sguiar Lhamdani, N. E. H., Bellakhdar, S., El Otmani, H., El Moutawakil, B., & Rafai, M. A. (2024). Pseudovascular Revelation of Seropositive Neuromyelitis Optica Spectrum Disorder: A Case Report. International Journal of Innovative Research in Medical Science, 9(07), 419–421. https://doi.org/10.23958/ijirms/vol09-i07/1927

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