[Discussable questions of non-typical endoscopical papillothomiya]

The article is dedicated to non-typical methods of operation of endoscopical papillothomiya. The article presents the history of elaboration of different methods of non-typical endoscopical papillothomiya, the results of analyze of data from the literature with a survey of discussable items about the necessity, effectiveness and safety of non-typical methods of endocsopical papillothomiya. The authors offered the classification of these methods, defined the conditions of using and gave the data of their own researches of effectiveness and frequency of complications during the process of operation of endoscopical papillothomiya by non-typical methods.