[Incomplete chronic duodenal stenosis caused by compression by the aorta and mesenteric artery].

In the light of data from the literature, as well as on the personal observations made in 5 cases of chronic, imcomplete duodenal stenosis through aortic-mesenteric pincers that have been hospitalized and operated, the authors stress: the complexity of the syndrome, the difficulties encountered in the establishment of the diagnosis, the severe consequences of the evolution, the necessity to apply surgical treatment as soon as possible.