RT Journal Article SR Electronic T1 MRI Features and Their Association With Outcomes in Children With Anti-NMDA Receptor Encephalitis JF Neurology - Neuroimmunology Neuroinflammation JO Neurol Neuroimmunol Neuroinflamm FD Lippincott Williams & Wilkins SP e200130 DO 10.1212/NXI.0000000000200130 VO 10 IS 4 A1 Grace Gombolay A1 J. Nicholas Brenton A1 Jennifer H. Yang A1 Coral M. Stredny A1 Ryan Kammeyer A1 Catherine E. Otten A1 NgocHanh Vu A1 Jonathan D. Santoro A1 Karla Robles-Lopez A1 Andrew Christiana A1 Claude Steriade A1 Morgan Morris A1 Mark Gorman A1 Manikum Moodley A1 Duriel Hardy A1 Alexandra B. Kornbluh A1 Ilana Kahn A1 Leigh N. Sepeta A1 Anusha Yeshokumar A1 and the Conquering Neuroinflammation and Epilepsies Consortium (CONNECT) YR 2023 UL http://nn.neurology.org/content/10/4/e200130.abstract AB Objectives How brain MRI lesions associate with outcomes in pediatric anti-NMDA receptor encephalitis (pNMDARE) is unknown. In this study, we correlate T2-hyperintense MRI brain lesions with clinical outcomes in pNMDARE.Methods This was a multicenter retrospective cohort study from 11 institutions. Children younger than 18 years with pNMDARE were included. One-year outcomes were assessed by the modified Rankin Score (mRS) with good (mRS ≤2) and poor (mRS ≥3) outcomes.Results A total of 175 pNMDARE subjects were included, with 1-year mRS available in 142/175 (81%) and 60/175 (34%) had abnormal brain MRIs. The most common T2-hyperintense lesion locations were frontal, temporal, and parietal. MRI features that predicted poor 1-year outcomes included abnormal MRI, particularly T2 lesions in the frontal and occipital lobes. After adjusting for treatment within 4 weeks of onset, improvement within 4 weeks, and intensive care unit admission, MRI features were no longer associated with poor outcomes, but after multiple imputation for missing data, T2 frontal and occipital lesions associated with poor outcomes.Discussion Abnormal frontal and occipital lesions on MRI may associate with 1-year mRS in pNMDARE. MRI of the brain may be a helpful prognostication tool that should be examined in future studies.