RT Journal Article SR Electronic T1 Brain lesion distribution criteria distinguish MS from AQP4-antibody NMOSD and MOG-antibody disease JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 132 OP 136 DO 10.1136/jnnp-2016-314005 VO 88 IS 2 A1 Maciej Juryńczyk A1 George Tackley A1 Yazhuo Kong A1 Ruth Geraldes A1 Lucy Matthews A1 Mark Woodhall A1 Patrick Waters A1 Wilhelm Kuker A1 Matthew Craner A1 Andrew Weir A1 Gabriele C DeLuca A1 Stephane Kremer A1 Maria Isabel Leite A1 Angela Vincent A1 Anu Jacob A1 Jérôme de Sèze A1 Jacqueline Palace YR 2017 UL http://jnnp.bmj.com/content/88/2/132.abstract AB Importance Neuromyelitis optica spectrum disorders (NMOSD) can present with very similar clinical features to multiple sclerosis (MS), but the international diagnostic imaging criteria for MS are not necessarily helpful in distinguishing these two diseases.Objective This multicentre study tested previously reported criteria of ‘(1) at least 1 lesion adjacent to the body of the lateral ventricle and in the inferior temporal lobe; or (2) the presence of a subcortical U-fibre lesion or (3) a Dawson's finger-type lesion’ in an independent cohort of relapsing-remitting multiple sclerosis (RRMS) and AQP4-ab NMOSD patients and also assessed their value in myelin oligodendrocyte glycoprotein (MOG)-ab positive and ab-negative NMOSD.Design Brain MRI scans were anonymised and scored on the criteria by 2 of 3 independent raters. In case of disagreement, the final opinion was made by the third rater.Participants 112 patients with NMOSD (31 AQP4-ab-positive, 21 MOG-ab-positive, 16 ab-negative) or MS (44) were selected from 3 centres (Oxford, Strasbourg and Liverpool) for the presence of brain lesions.Results MRI brain lesion distribution criteria were able to distinguish RRMS with a sensitivity of 90.9% and with a specificity of 87.1% against AQP4-ab NMOSD, 95.2% against MOG-ab NMOSD and 87.5% in the heterogenous ab-negative NMOSD cohort. Over the whole NMOSD group, the specificity was 89.7%.Conclusions This study suggests that the brain MRI criteria for differentiating RRMS from NMOSD are sensitive and specific for all phenotypes.