Acute pancreatitis after total aortic arch replacement leading to walled-off necrosis: A case report and review of literature

Figure 4 Abdominal computed tomography showing gradual shrinkage of walled-off necrosis. A: On postoperative day 42 (before the drainage) the diameter of walled-off necrosis (WON) (surrounded by arrows) was 18.5 cm; B: On postoperative day 53 (3 days after the first drainage) the diameter of WON (surrounded by arrows) was 16 cm; C: On postoperative day 63 (13 days after the first drainage, before the second drainage) the diameter of WON (surrounded by arrows) was 18 cm; D: On postoperative day 165 (115 days after the first drainage, 78 days after the second drainage) WON (surrounded by arrows) almost disappeared.