aortic intussusception

Full Definition

Aortic intussusception is a rare complication of chronic aortic dissection where the intimal flap telescopes or invaginates into the true lumen of the aorta, creating a 'windsock' appearance on imaging studies. This phenomenon typically occurs in the setting of chronic type B dissections where the false lumen has thrombosed and the intimal flap becomes mobile. The intussuscepted flap can cause significant luminal narrowing and may require surgical or endovascular intervention. Recognition of this finding is important for accurate reporting and treatment planning in patients with chronic aortic dissection.

In Context

• "Follow-up imaging demonstrated aortic intussusception with significant true lumen compromise." — Radiological follow-up report
• "The chronic dissection was complicated by intimal intussusception requiring endovascular stent grafting." — Case presentation