{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,17]],"date-time":"2026-03-17T22:28:11Z","timestamp":1773786491429,"version":"3.50.1"},"reference-count":19,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2025,1,3]],"date-time":"2025-01-03T00:00:00Z","timestamp":1735862400000},"content-version":"vor","delay-in-days":2,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Case Reports in Rheumatology"],"published-print":{"date-parts":[[2025,1]]},"abstract":"<jats:p>McArdle disease or glycogen storage disease Type V is a genetic condition caused by PYGM gene mutations leading to exercise intolerance and fatigability. The condition most commonly presents in childhood. In rare cases, patients have presented with late\u2010onset McArdle disease. We present a case of a 64\u2010year\u2010old male presenting with myalgia who was initially presented with polymyalgia rheumatica\u2013type symptoms of proximal muscle pain and a response to steroids. At review, his background musculoskeletal symptoms were evaluated in detail. Following a muscle biopsy, skeletal muscle enzymatic assay, and genetic testing, he was diagnosed with late\u2010onset McArdle\u2019s disease (homozygous PYGM genotype). The importance of recognition and early diagnosis is highlighted to enable the accurate diagnosis and conservative lifestyle advice, with the avoidance of other medical therapies for other disease mimics.<\/jats:p>","DOI":"10.1155\/crrh\/8148736","type":"journal-article","created":{"date-parts":[[2025,1,3]],"date-time":"2025-01-03T10:33:50Z","timestamp":1735900430000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Late Presentation of McArdle\u2019s Disease Mimicking Polymyalgia Rheumatica: A Case Report and Review of the Literature"],"prefix":"10.1155","volume":"2025","author":[{"given":"Maiar","family":"Elghobashy","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ute","family":"Pohl","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1952-2821","authenticated-orcid":false,"given":"James","family":"Bateman","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,1,3]]},"reference":[{"key":"e_1_2_12_1_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.nmd.2014.08.002"},{"key":"e_1_2_12_2_2","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.2009.195040"},{"key":"e_1_2_12_3_2","unstructured":"KhattakZ. 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