Figure 5.

Enlarged dorsal pancreatic artery and pancreaticoduodenal arcades in a patient with celiac axis occlusion. (A) A lateral abdominal aortogram shows occluded celiac axis (large arrow) and patent superior mesenteric artery (SMA) (small arrow). (B) Selective arteriogram from the SMA (vertical arrow) demonstrates mildly enlarged anterior (single arrowhead) and posterior (two arrowheads) pancreaticoduodenal arcades and dorsal pancreatic artery (horizontal arrow). Multiple vascular loops are the result of enlargement of multiple collateral vessels.