Regression of Coronary Aneurysms With Intravenous Immunoglobulins and Steroids for COVID-19 Adult Multisystem Inflammatory Syndrome.

A multisystem inflammatory syndrome mimicking Kawasaki disease has been increasingly reported, mainly in children, in the context of coronavirus disease-2019 (COVID-19). We report on the first case of coronary aneurysm resolution after treatment with steroids and intravenous immunoglobulins in an adult patient with multisystem inflammatory syndrome temporally associated with COVID-19. (Level of Difficulty: Beginner.).