[Endoscopic diagnosis and treatment of tumors of the major duodenal papilla].

Gastroduodenoscopy with target examination of the major duodenal papilla (MDP) and morphological study of the tumor, and endoscopic retrograde pancreatocholangiography were conducted in 104 patients with bening and malignant tumors of the MDP to establish the diagnosis. A precise diagnosis was made. Endoscopic papillotomy alone and in combination with nasobiliary drainage and endoprosthetics of the bile ducts were undertaken for therapeutic purposes in this category of patients. Analysis of the results showed that in cancer of the MDP, these methods can be the tool of treatment or an effective one of preoperative decompression, whereas in bening tumors of the MDP endoscopic papillotmy should be the method of choice.