Angiographic findings were investigated for 17 cases of pancreatic carcinoma. Obstruction (41.2%) and irregular encasement (61.2%) were demonstrated indicating the inoperability. These cases were classified into three groups depending on the extent of vascular involvement on vessels around and/or within the pancreas : no case in group I, 4 cases in group II and 13 cases in group III. There was no case on which radical operation was performed and palliative operation only was performed on one case (25.0%) out of group II and 2 case (15.4%) out of group III.
In our experience, only the cases without remarkable angiographic findings (group I) would be resectable, unless the operative technic would not be improved.
