[The preoperative morphological diagnosis of hepatobiliary and pancreatoduodenal cancer].

Morphological investigations at the preoperative stage were performed in 94 patients. The morphological diagnosis was made on the basis of findings of duodenal biopsies, cytological investigations of the bile and aspirate from the Vater's papilla ampulla, endocholedochal and percutaneous biopsies with the express cytological monitoring. Recommendations are given on the programs of preoperative morphological diagnosis of carcinoma of Vater's papilla.