Fig. 16

An 84-year-old male with lesser sac and pancreatic abscess (* in A, B) from retroperitoneal perforation of pyloric peptic ulcer (arrowheads) underwent emergency surgery, including subtotal gastrectomy with Billroth II reconstruction. Note pancreatic parenchyma (+), oedematous thickening of pylorus submucosa (thick arrows). On 7th POD surgical revision was required due to DS biliary leakage, with positioning of Kehr tube. Subsequently, on 20th POD follow-up CT (C, D) showed minimal fluid adjacent to the drainage tube, consistent with laboratory diagnosis of postoperative pancreatic fistula