Isolated giant infrarenal abdominal aortic aneurysm with dissection: Case report of an extremely rare entity

Although abdominal aortic aneurysm (AAA) is common in the atherosclerotic aorta in the elderly, isolated AAA (IAAA) is a rare entity. Only few case reports of IAAA associated with concomitant dissection are reported in the literature. Here, we present a case of a middle-aged male who presented with abdominal pain with stable hemodynamics. Abdominal examination revealed a pulsatile mass in the left paraumbilical region. CT angiography of the abdomen revealed an isolated infrarenal AAA with dissection extending into the bilateral common iliac arteries and an eccentric partial thrombosis of the false lumen. The patient underwent successful open aneurysmorrhaphy with PTFE graft. Postoperative course was uneventful, and the patient was discharged to follow up in clinics.