[Morphological characteristics of stenosis of the major duodenal papilla].

The study demonstrates a broad spectrum of pathological processes (of inflammatory, tumorous, and tumor-like genesis) of the major duodenal papilla, which result in its stenosis. It should be stressed that only a comprehensive clinical and morphological approach to diagnosing diseases of the major duodenal papilla and accordingly to choosing an adequate treatment may be a success. The morphological studies are currently prominent.