Abstract Archives of the RSNA, 2014
NRE167
“Neuromyelitis Optica” Evokes Merely Optic Neuritis and Transverse Myelitis, but Are We Ignoring Brain Lesions?
Education Exhibits
Presented in 2014
Gunes Orman MD, Presenter: Nothing to Disclose
Izlem Izbudak MD, Abstract Co-Author: Nothing to Disclose
The purpose of this exhibit is:
1. To review the pathophysiology and history of neuromyelitis optica (NMO)
2. To emphasize that majority of NMO patients have brain lesions over the course of the disease and approximately 70% of brain lesions are characteristic for NMO
3. To demonstrate multiple types of brain lesions shown to be characteristic for NMO on brain MRI
History of NMO
Pathophysiology of NMO and Recent Discoveries
Review of Brain MRI Findings
– Conventional MRI:
• T2 and FLAIR sequences (periependymal lesions surrounding aqueduct, third and fourth ventricles, diencephalon and brainstem lesions, longitudinally extensive corticospinal tract lesions, extensive hemispheric white matter lesions, nonspecific lesions)
• Post-contrast T1 sequence (periependymal, cloud-like, leptomeningeal, isolated, ring enhancement)
– Diffusion Weighted Imaging
Sample cases and mimics
Future directions and summary
http://abstract.rsna.org/uploads/2014/14004953/14004953_9tsz.pdf
Orman, G,
Izbudak, I,
“Neuromyelitis Optica” Evokes Merely Optic Neuritis and Transverse Myelitis, but Are We Ignoring Brain Lesions?. Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL.
http://archive.rsna.org/2014/14004953.html