Anti-Kv1.4 Antibody Without Myasthenia Gravis : A Rare Cause of Autoimmune Myocarditis and Myositis

ABSTRACT: Anti-Kv1.4 antibody is often detected in thymoma-associated myasthenia gravis patients with anti-acetylcholine receptor antibody. Herein, we describe 2 patients with concurrent myocarditis and myositis. In both cases, anti-Kv1.4 antibody was positive despite the absence of thymoma and anti-acetylcholine receptor antibody, and immunosuppressants eventually resolved their symptoms and cardiac function. (Level of Difficulty: Advanced.) Central Illustration

SUBMITTER: Kuyama N 

PROVIDER: S-EPMC9998724 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature