A 30-year-old woman presented with presyncopal episodes and was found to have high degree atrioventricular block. Computed tomography imaging demonstrated pericardial thickening extending from the main pulmonary artery to the aortic cusps. Here we present a rare case of fibrosing mediastinitis causing high-degree atrioventricular block. (Level of Difficulty: Intermediate.).
Keywords: AV, atrioventricular; FM, fibrosing mediastinitis; atrioventricular block (AV block); fibrosing mediastinitis; periaortic thickening.
© 2023 The Authors.