Extensive small bowel dilatation, absent mural enhancement with prominent mural gas seen best in the jejunum ( * ). The ascending colon appears thick-walled (yellow arrows), up to the proximal transverse colon. Gas is also seen in the branches of the superior mesenteric vein, and peripherally in the liver (green arrows).
There is evidence of prior pancreatic surgery with a mass seen in the surgical bed (red), encasing and occluding the superior mesenteric artery (SMA) and celiac trunk (CT)
Cavernous transformation of the portal vein (orange).