Several cases of COVID-19 linked myositis have been reported in the literature, most occurring in adult males
COVID-linked myositis has varied presentations; blood panels or imaging may appear normal
Similarity between COVID-19 linked myositis and anti-melanoma differentiation associated gene 5 (MDA5)-positive myositis may represent an avenue for exploring treatment strategies
Described cases involve treatment with steroids and anti-inflammatory drugs during in-hospital stay
Most cases described experience a prolonged recovery of weeks to months, however due to short post-discharge follow-up periods, long-term recovery is yet unknown
Badea, A; Groot, G; Reeder, B; Dalidowicz, M; Miller, L. Is there any association or links between COVID and interferonopathy or polymyositis? 2022 May 11, Document no.: EOC220502 RR. In: COVID-19 Rapid Evidence Reviews [Internet]. SK: SK COVID Evidence Support Team, c2022. 7 p. (CEST rapid review report).