{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T15:14:00Z","timestamp":1786115640882,"version":"build-2736575974"},"reference-count":32,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T00:00:00Z","timestamp":1785801600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Brain Sci.","Brain Sciences"],"abstract":"<jats:p>Background\/Objectives: Multiple sclerosis (MS) is frequently accompanied by cognitive impairment, yet the neurobiological mechanisms underlying cognitive heterogeneity remain incompletely understood. The choroid plexus (CP), a blood\u2013CSF barrier structure involved in cerebrospinal fluid production and neuroimmune signaling, has recently emerged as a potential MRI marker of inflammatory and neurodegenerative activity in MS. This scoping review mapped evidence on associations between CP features and cognitive functions in adults with MS. Methods: A broad search of PubMed, Scopus, Web of Science Core Collection, and the Cochrane Library identified 1163 records; after deduplication, screening, and full-text assessment, seven studies were included. Results: CP volume or normalized CP volume was assessed in all seven studies, and one study additionally examined the CP T1\/T2 ratio. The Symbol Digit Modalities Test was used in six studies, while five applied multidomain cognitive assessment. Larger CP volume was associated in several studies with poorer baseline information-processing speed, visuospatial memory, or multidomain cognition, but longitudinal findings did not show consistent predictive value for CP volume. One study reported that a higher CP T1\/T2 ratio predicted faster visuospatial-memory decline. Conclusions: CP-related measures may reflect broader neuroinflammatory and neurodegenerative processes relevant to cognition in MS, but the evidence remains limited and methodologically heterogeneous. Standardized acquisition and segmentation, harmonized cognitive assessment, and adequately powered longitudinal studies are needed to establish their independent and predictive value.<\/jats:p>","DOI":"10.3390\/brainsci16080829","type":"journal-article","created":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T13:42:36Z","timestamp":1785850956000},"page":"829","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Choroid Plexus MRI Features and Cognitive Outcomes in Multiple Sclerosis: A Scoping Review"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6618-7013","authenticated-orcid":false,"given":"Weronika","family":"Galus","sequence":"first","affiliation":[{"name":"Department of Neurology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, 40-752 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1689-4347","authenticated-orcid":false,"given":"Patrycja","family":"Romaniszyn-Kania","sequence":"additional","affiliation":[{"name":"Faculty of Biomedical Engineering, Silesian University of Technology, 41-800 Zabrze, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-3869-7741","authenticated-orcid":false,"given":"Aleksandra","family":"Urant\u00f3wka","sequence":"additional","affiliation":[{"name":"Faculty of Biomedical Engineering, Silesian University of Technology, 41-800 Zabrze, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-3453-9780","authenticated-orcid":false,"given":"Hanna","family":"Zielonka","sequence":"additional","affiliation":[{"name":"Faculty of Biomedical Engineering, Silesian University of Technology, 41-800 Zabrze, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3899-1260","authenticated-orcid":false,"given":"Katarzyna","family":"Zawi\u015blak-Fornagiel","sequence":"additional","affiliation":[{"name":"Department of Neurology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, 40-752 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julia","family":"Wyszomirska","sequence":"additional","affiliation":[{"name":"Department of Psychology, Faculty of Health Sciences in Katowice, Medical University of Silesia, 40-752 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7988-2795","authenticated-orcid":false,"given":"Urszula","family":"K\u0142osi\u0144ska","sequence":"additional","affiliation":[{"name":"Faculty of Psychology, SWPS University of Social Sciences and Humanities, 53-238 Wroclaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4940-499X","authenticated-orcid":false,"given":"Oskar","family":"Bo\u017cek","sequence":"additional","affiliation":[{"name":"Department of Radiology and Nuclear Medicine, Faculty of Medical Sciences in Katowice, Medical University of Silesia, 40-752 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7704-2901","authenticated-orcid":false,"given":"Daniel","family":"Ledwo\u0144","sequence":"additional","affiliation":[{"name":"Faculty of Biomedical Engineering, Silesian University of Technology, 41-800 Zabrze, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-1334-0236","authenticated-orcid":false,"given":"Aleksandra","family":"Tuszy","sequence":"additional","affiliation":[{"name":"Faculty of Biomedical Engineering, Silesian University of Technology, 41-800 Zabrze, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7833-5845","authenticated-orcid":false,"given":"Andrzej W.","family":"Mitas","sequence":"additional","affiliation":[{"name":"Faculty of Biomedical Engineering, Silesian University of Technology, 41-800 Zabrze, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0340-660X","authenticated-orcid":false,"given":"Joanna","family":"Siuda","sequence":"additional","affiliation":[{"name":"Department of Neurology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, 40-752 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,8,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"41","DOI":"10.1016\/j.jns.2005.08.019","article-title":"Multiple sclerosis-related cognitive changes: A review of cross-sectional and longitudinal studies","volume":"245","author":"Amato","year":"2006","journal-title":"J. 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