[Bühler's anastomosis (author's transl)].

The arc of Bühler between the celiac and superior mesenteric arteries has to be considered as an embryological persistence of the portion of the ventral longitudinal anastomosis. The collateral development of the anastomosis refers to a different hemodynamic in the upper visceral arteries. We discovered the arc of Bühler in 14 cases among 340 selective celiac and superior mesenteric arteriographic studies. Its existence permits conclusions about further angiographic procedures and facilitates the interpretation of visceral collaterals.