between 1968 and 1982 , 13 patients in this study had a pancreaticoduodenectomy ( pd ) , one patient had a total pancreatectomy , two had an ampullectomy , and one patient had a choledochoduodenostomy for neoplasia of the ampulla of vater .
C0085162
pancreaticoduodenectomy
C0042425
of