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The muscle biopsy in these patients was consistent with findings of HCQ toxicity. HCQ muscle toxicity is usually self\u2010limiting after discontinuation of the drug. It also usually tends to be under\u2010reported due to presence of various confounding factors. This warrants close monitoring and consideration of muscle biopsy as part of initial work up of patients who present with myopathy while receiving HCQ.<\/jats:p>","DOI":"10.1111\/neup.12520","type":"journal-article","created":{"date-parts":[[2018,11,9]],"date-time":"2018-11-09T01:24:25Z","timestamp":1541726665000},"page":"646-652","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["Hydroxychloroquine\u2010induced autophagic vacuolar myopathy with mitochondrial abnormalities"],"prefix":"10.1111","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0677-7550","authenticated-orcid":false,"given":"Shaweta","family":"Khosa","sequence":"first","affiliation":[{"name":"Department of Neurology Olive\u2010View UCLA Medical Center Los Angeles California 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