Kiriti S. Vattikonda DO, MS, Courtney Barth BS, Christopher J. Peterson MD, MS, Michael S. Stump MD, John Lystash MD
Lipomatous hypertrophy of the interatrial septum (LHIS) is a benign cardiac non-neoplastic mass. In the vast majority of cases, LHIS is an incidental finding found on cardiac imaging requiring no specific therapy. However, due to its size and location, LHIS can complicate cardiac surgery or structural heart interventional procedures.
Keywords: Lipomatous hypertrophy, interatrial septum, coronary artery bypass, cardiac mass, cardiac surgery
Article citation: Vattikonda KS, Barth C, Peterson CJ, Stump MS, Lystash J. Lipomatous hypertrophy of the interatrial septum: An unexpected finding complicating a routine CABG. The Southwest Journal of Medicine. 2026;14(61):110–114
From: Department of Internal Medicine, Virginia Tech Carilion School of Medicine, Roanoke, VA (KSV, CJP) Virginia Tech Carilion School of Medicine, Roanoke, VA (CB) Department of Pathology, Carilion Clinic, Roanoke, VA (MSS) Department of Cardiology, Virginia Tech Carilion School of Medicine, Roanoke, VA (JL)
Conflicts of interest: none
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