Magnetic resonance imaging for acute pancreatitis

Figure 18 Splenic artery pseudoaneurysm in a 36-year-old man with a history of acute pancreatitis. A: Axial magnetic resonance (MR) T2-weighted with fat-suppression image shows the involved part of the splenic artery (large arrows) and aneurysmal dilatation (small arrows); B: Axial T1-weighted image obtained with intravenous contrast material reveals enhancement of the pseudoaneurysm cavity (c) and a filling defect present as mural thrombosis (T), and wedge-shape zones of infarction of the spleen (small arrows) due to the involved parts of the splenic artery (large arrows); C: MR angiography further depicts the visualization of the relationship between this pseudoaneurysm (large arrow) and the involved splenic artery (small arrows). c: Cavity of the pseudoaneurysm; T: Mural thrombosis in the pseudoaneurysm.