{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T19:12:14Z","timestamp":1792782734257,"version":"4.5.0"},"reference-count":120,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2020,6,1]],"date-time":"2020-06-01T00:00:00Z","timestamp":1590969600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"John Lawyer, a Mayo Clinic benefactor","id":[{"id":"https:\/\/ror.org\/02qp3tb03","id-type":"ROR","asserted-by":"crossref"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Muscle and Nerve"],"published-print":{"date-parts":[[2020,10]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Muscle disorders are characterized by differential involvement of various muscle groups. Among these, weakness predominantly affecting finger flexors is an uncommon pattern, most frequently found in sporadic inclusion\u2010body myositis. This finding is particularly significant when the full range of histopathological findings of inclusion\u2010body myositis is not found on muscle biopsy. Prominent finger flexor weakness, however, is also observed in other myopathies. It occurs commonly in myotonic dystrophy types 1 and 2. In addition, individual reports and small case series have documented finger flexor weakness in sarcoid and amyloid myopathy, and in inherited myopathies caused by\n                    <jats:italic>ACTA1<\/jats:italic>\n                    ,\n                    <jats:italic>CRYAB<\/jats:italic>\n                    ,\n                    <jats:italic>DMD<\/jats:italic>\n                    ,\n                    <jats:italic>DYSF<\/jats:italic>\n                    ,\n                    <jats:italic>FLNC<\/jats:italic>\n                    ,\n                    <jats:italic>GAA<\/jats:italic>\n                    ,\n                    <jats:italic>GNE<\/jats:italic>\n                    ,\n                    <jats:italic>HNRNPDL<\/jats:italic>\n                    ,\n                    <jats:italic>LAMA2<\/jats:italic>\n                    ,\n                    <jats:italic>MYH7<\/jats:italic>\n                    , and\n                    <jats:italic>VCP<\/jats:italic>\n                    mutations. Therefore, the finding of finger flexor weakness requires consideration of clinical, myopathological, genetic, electrodiagnostic, and sometimes muscle imaging findings to establish a diagnosis.\n                  <\/jats:p>","DOI":"10.1002\/mus.26914","type":"journal-article","created":{"date-parts":[[2020,6,1]],"date-time":"2020-06-01T09:20:22Z","timestamp":1591003222000},"page":"445-454","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Myopathies with finger flexor weakness: Not only inclusion\u2010body myositis"],"prefix":"10.1002","volume":"62","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5631-0559","authenticated-orcid":false,"given":"Stefan","family":"Nicolau","sequence":"first","affiliation":[{"name":"Department of Neurology Mayo Clinic  200 1st Street SW Rochester Minnesota 55905 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