The frequency of longitudinally extensive transverse myelitis in MS: A population-based study

ConclusionLETM is rare in adult MS myelitis and its presence should prompt evaluation for AQP4-IgG, MOG-IgG or other etiologies. Careful scrutiny of axial images is important as coalescence of multiple short lesions may lead to the artifactual appearance of an LETM.
Source: Multiple Sclerosis and Related Disorders - Category: Neurology Source Type: research