{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T23:05:06Z","timestamp":1788822306342,"version":"build-2803163510"},"reference-count":45,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2023,9,6]],"date-time":"2023-09-06T00:00:00Z","timestamp":1693958400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["454245528"],"award-info":[{"award-number":["454245528"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000009","name":"Foundation for the National Institutes of Health","doi-asserted-by":"publisher","award":["AG059893"],"award-info":[{"award-number":["AG059893"]}],"id":[{"id":"10.13039\/100000009","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Annals of Neurology"],"published-print":{"date-parts":[[2023,11]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>A definite diagnosis of cerebral amyloid angiopathy (CAA), characterized by the accumulation of amyloid \u03b2 in walls of cerebral small vessels, can only be obtained through pathological examination. A diagnosis of probable CAA during life relies on the presence of hemorrhagic markers, including lobar cerebral microbleeds (CMBs). The aim of this project was to study the histopathological correlates of lobar CMBs in false\u2010positive CAA cases.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>In 3 patients who met criteria for probable CAA during life, but showed no CAA upon neuropathological examination, lobar CMBs were counted on ex vivo 3T magnetic resonance imaging (MRI) and on ex vivo 7T MRI. Areas with lobar CMBs were next sampled and cut into serial sections, on which the CMBs were then identified.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Collectively, there were 25 lobar CMBs on in vivo MRI and 22 on ex vivo 3T MRI of the analyzed hemispheres. On ex vivo MRI, we targeted 12 CMBs for sampling, and definite histopathological correlates were retrieved for 9 of them, of which 7 were true CMBs. No CAA was found on any of the serial sections. The \u201cculprit vessels\u201d associated with the true CMBs instead showed moderate to severe arteriolosclerosis. Furthermore, CMBs in false\u2010positive CAA cases tended to be located more often in the juxtacortical or subcortical white matter than in the cortical ribbon.<\/jats:p><\/jats:sec><jats:sec><jats:title>Interpretation<\/jats:title><jats:p>These findings suggest that arteriolosclerosis can generate lobar CMBs and that more detailed investigations into the exact localization of CMBs with respect to the cortical ribbon could potentially aid the diagnosis of CAA during life. ANN NEUROL 2023;94:856\u2013870<\/jats:p><\/jats:sec>","DOI":"10.1002\/ana.26761","type":"journal-article","created":{"date-parts":[[2023,8,7]],"date-time":"2023-08-07T14:39:32Z","timestamp":1691419172000},"page":"856-870","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Histopathological Correlates of Lobar Microbleeds in False\u2010Positive Cerebral Amyloid Angiopathy Cases"],"prefix":"10.1002","volume":"94","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3551-5237","authenticated-orcid":false,"given":"Valentina","family":"Perosa","sequence":"first","affiliation":[{"name":"J. 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