Abdominal and pelvic CT showing right-sided retroperitoneal hemorrhage (arrows)Subject to the imposed limitations, apparent resolution of the duodenal and pancreatic inflammatory changes. Thickened duodenum with mesenteric fat inflammatory changes suggesting duodenitis versus non-perforated peptic ulcer disease. Peripancreatic inflammatory changes are seen around the pancreatic head and are likely reactive; however, primary pancreatitis with reactive thickening of the duodenum cannot be excluded. CT: computed tomography