Floating aortic thrombus in a patient with non-Hodgkin's Lymphoma.

Aortic thrombus is a rare condition unless there is an underlying wall pathology such as atherosclerosis, aneurysm, dissection, or thrombus within the left heart chambers. It causes visceral or peripheral embolisms, and is fatal, if not treated. These characteristics make early diagnosis and therapy essential. We report here the computed tomography findings of a floating thrombus that hanged on to the normal aortic wall with a thin peduncle and caused peripheral embolism in a 58-year-old lymphoma patient who had no evident source of emboli.