Aortic Mural Thrombus Embolization: An Unusual Presentation of Essential Thrombocytosis

Hypercoagulable conditions are increasingly recognized as a causative factor in patients with thromboembolic phenomenon. Essential thrombocytosis (ET) is one such condition. This particular myeloproliferative disorder is most commonly associated with thrombotic complications of the microvasculature and bleeding complications involving mucosal surfaces (e.g., gastrointestinal tract bleeding). This case identifies an uncommon manifestation of ET—aortic mural thrombus leading to visceral embolism. Vascular surgeons should be aware of the diagnosis, treatment, and complications of ET, as patients with this condition may first present with an arterial occlusion.