Advancements in Morphological Verification: Evaluating a Novel Method for Pancreatic and Distal Bile Duct Tumour

The Aim of the Investigation: Increasing the effectiveness of methods for morphological verification of tumours of the head of the pancreas (HP) and the distal common bile duct (DCBD) while reducing the risks of complications and reducing the time of diagnosis and treatment. Materials and Methods: Retrospective analysis of treatment results of 441 patients with OJ of tumour origin. The results of endoscopic transpapillary and, or percutaneous transhepaticantegradeendobilliary minimally invasive surgical interventions in 439 (99.5%) patients were studied. An analysis of complications, causes and possible ways to eliminate them was carried out. The lack of technical capabilities, the complexity of implementation, the traumatic nature and risks of complications of using the existing arsenal of methods for obtaining histological materials from tumours of the HP and DCBD required the search for new solutions.