posted on 2024-10-10, 14:15authored byBing Wei Thaddeus Soh, Sophie Catherine Prendergast, Louise Burke, Cormac T. O’Connor, Ihsan Ullah, Julie M. O’Brien, John A. Hinchion, Samer Arnous, Thomas J. KiernanThomas J. Kiernan
IgG4-related disease (IgG4-RD) is a new clinical entity characterized by lymphoplasmacytic lesions rich in IgG4-positive plasma cells. Myocardial involvement is extremely rare and not a typical cardiovascular manifestation of IgG4-RD. We report a rare case of IgG4-RD–associated myocardial mass causing severe aortic incompetence, successfully treated with surgery and corticosteroids. (Level of Difficulty: Intermediate.)