Aortic dissection arising distal to the left subclavian artery extending to the abdominal aorta (and out of the field of view). Large false lumen is poorly opacified, with a smaller well opacified true lumen. No extension into the aortic arch branches. Coeliac, superior mesenteric and left renal artery arise from the true lumen. Right renal artery is not well opacified. Partially thrombosed splenic artery aneurysm.