We report a case of a 70-year-old woman who presented for a cavotricuspid isthmus atrial flutter ablation that was aborted prematurely. On subsequent imaging, she was discovered to have a right atrial diverticulum, which was present on prior imaging but not reported, likely due to unfamiliarity with the entity. (Level of Difficulty: Intermediate.).
Keywords: atrial flutter; echocardiography; imaging; supraventricular arrhythmias; ultrasound.
© 2023 The Authors.