ArticleNeurology(R) neuroimmunology & neuroinflammation2026
Paramagnetic Rim Lesions in Pediatric Multiple Sclerosis and Their Association With Brain Tissue Atrophy.
Article in Neurology(R) neuroimmunology & neuroinflammation, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 2 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Expert Panel Consensus Guidelines of the German Society of Neuroradiology on the Use of Magnetic Resonance Imaging in the Diagnosis and Monitoring of Multiple Sclerosis.Clinical neuroradiology · 2026Guideline
- Central vein sign and paramagnetic rim lesions in pediatric-onset multiple sclerosis: a systematic review and meta-analysis.Journal of neurology · 2026Pooled it
- Treatment Effects on Chronic Active Lesions in Multiple Sclerosis: Current Evidence and Future Perspectives.Neurology and therapy · 2026Review
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Authors and funding
21 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
objectivesParamagnetic rim lesions (PRLs), visible on susceptibility-based imaging (SbI), reflect chronic active inflammation in multiple sclerosis (MS). In adult-onset MS, PRLs are associated with a more aggressive disease course.The objectives of this study were to assess the prevalence of PRLs in children with MS and to examine how baseline PRL count relates to clinical disability and brain tissue volume loss, both cross-sectionally and over short-term follow-up.
methodsWe retrospectively analyzed pediatric patients from 4 UK tertiary neuroimmunology centers who met the 2017 McDonald diagnostic criteria and had 3D T1-weighted, T2-weighted, fluid-attenuated inversion recovery, and SbI MRI available. PRLs were identified per North American Imaging in MS criteria and anatomically classified. Brain volumes were segmented using Mindglide, with z-scores derived from NIH normative data. Associations between baseline PRL burden, clinical variables, and brain volumes were assessed using univariable and multivariable stepwise regression. Linear mixed-effects models evaluated the predictive value of baseline PRL burden on longitudinal brain volume changes.
resultsFifty-four patients (mean age 14.0 ± 2.2 years; 75.9% female) were included. At least 1 PRL was seen in 74.1% of patients, with a median number of 2 PRLs (interquartile range [IQR] = 0-6), predominantly in periventricular regions, and accounting for 25% of total T2-weighted hyperintense lesions. In multivariable Poisson regression, at baseline, shorter disease duration (incidence rate ratio [IRR] = 0.987, 95% CI 0.975-0.999, DISCUSSION: PRLs are common in pediatric MS and are linked to greater lesion burden and gray matter atrophy. These findings suggest that PRLs are promising imaging biomarkers of more severe brain tissue damage although their ability to predict future disability requires confirmation in longer term studies.
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