Aortic intramural hematoma (IMH) is a collection of blood within the aortic wall without an identifiable intimal tear. It belongs to the spectrum of acute aortic syndrome (AAS) which also includes aortic dissection (AD), a well-defined entity. Principles of management guided by Stanford classification is similar in both entities. But with recent advances in imaging, certain features of IMH have been identified that affect the natural course of IMH. We report a unique case of iatrogenic IMH complicating a routine coronary artery bypass graft surgery (CABG) and how imaging guided intraoperative decision making toward conservative management.