{"title":"Muscle vasculitis in patients with polymyalgia rheumatica; three case series.","authors":"Haruka Moriya, Yuichiro Fujieda, Yuta Inoue, Kenichi Miyamoto, Mamiko Anada, Daiki Tanaka, Akihiko Kudo, Megumi Abe, Azusa Nagai, Ryo Hisada, Michihito Kono, Masaru Kato, Olga Amengual, Yoshihiro Matsuno, Ichiro Yabe, Tatsuya Atsumi","doi":"10.1093/mrcr/rxae072","DOIUrl":null,"url":null,"abstract":"<p><p>Polymyalgia rheumatica (PMR) is a common inflammatory disorder characterized by myalgia/stiffness in proximal hip and shoulder girdle, elevated C reactive protein (CRP) and erythrocyte sedimentation rate (ESR), but its pathogenesis is not fully elucidated. We report three cases of PMR who do not respond adequately to standard treatment. Those patients had typical symptoms of myalgia and muscle weakness, with elevated CRP in absence of creatine kinase elevation. Muscle specimen showed the findings of vasculitis in all cases, therefore muscular limited vasculitis (MLV) may be an underlying pathology in PMR in those refractory cases.</p>","PeriodicalId":94146,"journal":{"name":"Modern rheumatology case reports","volume":" ","pages":""},"PeriodicalIF":0.9000,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Modern rheumatology case reports","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1093/mrcr/rxae072","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"RHEUMATOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Polymyalgia rheumatica (PMR) is a common inflammatory disorder characterized by myalgia/stiffness in proximal hip and shoulder girdle, elevated C reactive protein (CRP) and erythrocyte sedimentation rate (ESR), but its pathogenesis is not fully elucidated. We report three cases of PMR who do not respond adequately to standard treatment. Those patients had typical symptoms of myalgia and muscle weakness, with elevated CRP in absence of creatine kinase elevation. Muscle specimen showed the findings of vasculitis in all cases, therefore muscular limited vasculitis (MLV) may be an underlying pathology in PMR in those refractory cases.
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