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Updated: Feb 17, 2026

Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
Published on: August 1, 2025
Thoracoabdominal aortic mural and floating thrombus extending into superior mesenteric artery
Sedat Giray Kandemirli1, Ozan Onur Balkanay2, Muhammad Osama Awiwi3
1Department of Radiology, Cerrahpasa Medical Faculty, Istanbul University, Fatih, 34098, Istanbul, Turkey. gskandemirli@yahoo.com.
Abstract:
Thrombus in the thoracic aorta not related to aneurysm or atherosclerosis is a rare clinical entity with a limited number of cases reported. Floating thrombus is defined as non-adherent part of the thrombus floating within the aortic lumen. Herein, we present a 48-year-old woman who presented with progressive midline dull, aching abdominal pain of 2-day duration. Thoracoabdominal computed tomography revealed a free floating thrombus extending from the aortic arch into the superior mesenteric artery. Transesophageal echocardiography confirmed the findings of a thrombus extending through the aortic arch. Floating thrombus within the aortic lumen in a morphologically normal descending thoracic and abdominal aorta is a rare entity.
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