[Modern classification of the lymph nodes groups in hepatopancreatobiliary zone, multifactorial criterion "T" and the lymphadenectomy extent in malignant diseases of pancreatic head].

Modern classifications of lymph nodes of the hepatopancreatobiliary zone organs, applied by domestic and leading foreign surgeons were analyzed. A modified classification of lymph nodes was proposed, basing on recommendations of Japanese society of pancreatologists (V edition). Basing on own experience, the results of studying of the lymph nodes groups and extent of lymphadenectomy in patients while presence of malignant tumors of pancreas and distal portion of common biliary duct were analyzed.