Abstract
We describe a patient treated with thoracic endovascular aortic repair and false lumen (FL) occluder for chronic type B aortic dissection. We noticed during open surgery for contained rupture that the distal unstented sleeve of the FL occluder crossed from the false into the true lumen through an intimal reentry (used for its introduction into the FL) potentially obstructing true lumen-originating renovisceral arteries.