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Abstract
Necrotising autoimmune myopathy (NAM) is characterised by a common phenotype of profound symmetrical proximal muscle weakness, elevated creatine kinase levels, irritable myopathy on electromyography and histological findings of myocyte necrosis and regeneration without remarkable inflammation. NAM is associated with autoimmune antibodies including anti-3-hydroxy-3-methylglutaryl-coenzyme receptor, which is strongly associated with statin use. We report a case of statin-associated NAM with an atypical presentation of severe oropharyngeal dysphagia and no remarkable proximal muscle weakness at initial presentation but with rapid progression to severe quadriparesis in weeks. This case expands the spectrum of presentation patterns of this rare disease and highlights the need for a high index of suspicion in patients with a remote history of statin use.
- connective tissue disease
- drugs: musculoskeletal and joint diseases
- musculoskeletal syndromes
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Footnotes
Contributors All authors had access to the case and a role in writing the case report. OA: reviewed literature, wrote and edited the case summary, introduction and case discussion. MM: helped with planning, literature review and wrote the case presentation. NA: reviewed literature and edited the case report. BM: critically reviewed the case report.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.
Patient consent for publication Next of kin consent obtained.