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[Surgical anatomy of the terminal choledochus].

On the basis of data from the literature, as well as on his personal experience, the author defines a series of notions concerning the structural particularities of the terminal choledocus, highly interesting from the surgical view point. It is shown that at this level a valve exists, with a special structure, as well as a complex sphincteral system, highly refined in its functions, that should be carefully preserved, within the possibilities of techniques applied during surgical interventions.