Cardiac Sarcoidosis Presenting as a Biatrial Mass | JACC: Case Reports | ACC.25

Mary Norine Walsh, MD, MACC, JACC: Case Reports Deputy Editor, is joined by author Dena Hayes, MD, discussing this study from Hayes et al presented at ACC.25 and published in JACC: Case Reports. The diagnosis of cardiac sarcoidosis (CS) is often challenging, particularly in atypical cases. The authors describe a case of a previously healthy 33-year-old woman who was found to have a biatrial mass and evidence of a diffuse inflammatory or neoplastic process on multimodality imaging. Percutaneous biopsy of the cardiac mass was performed and histopathology revealed granulomas consistent with CS. This case adds to the growing number of reports of CS presenting as an intracardiac mass.