Review ArticleWhat is in the Myopathy Literature?Lacomis, David MDAuthor Information Departments of Neurology and Pathology (Neuropathology), University of Pittsburgh School of Medicine, Pittsburgh, PA. Reprints: David Lacomis, MD, Departments of Neurology and Pathology (Neuropathology), University of Pittsburgh School of Medicine, UPMC-Presbyterian, Room F872, 200 Lothrop St, Pittsburgh, PA 15213 (e-mail: [email protected]). The author reports no conflicts of interest. Journal of Clinical Neuromuscular Disease: December 2020 - Volume 22 - Issue 2 - p 77-83 doi: 10.1097/CND.0000000000000329 Buy Metrics Abstract This update begins with muscle manifestations of coronavirus 2019. They may include myalgias and elevations in serum creatine kinase. It is unknown whether there is direct muscle invasion and how often the critically ill have muscle sequelae. Regarding autoimmune myopathies, a retrospective study of statin-induced necrotizing myopathy is covered. A relatively large proportion of patients had normal strength at presentation. Examples of dermatomyositis associated with immune checkpoint inhibitors are provided including one with cytokine storm. A report of juvenile dermatomyositis with severe abdominal complications is noteworthy. Two articles address unusual associations with inclusion body myositis, namely, spinocerebellar ataxias and granuloma myositis. In the category of muscular dystrophies, a relatively large single center study of the outcome of scapulothoracic arthrodesis for facioscapulohumeral muscular dystrophy is discussed and a article on anoctaminopathies with pauci- or asymptomatic hyperCKemia. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.