The hypertrophic uncinate process of the pancreas wrapping the superior mesenteric vein and artery--a case report.

The hypertrophic uncinate process of the pancreas wrapping the superior mesenteric vein and artery was discovered during surgery on a patient with nodular chronic pancreatitis. Such a rare anomaly has never been noted in the English literature so far as we have been able to find. This malformation of the pancreatic uncinate process was considered to be due to excess fusion between the ventral and dorsal pancreatic anlages during embryonic stage.