The authors report the case of a 39-year-old man with a common origin of th
ree arteries-the celiac, superior mesentenc, and inferior mesenteric arteri
es-that has not been de; scribed previously in the literature, to their kno
wledge. This variant, which they call the celiac-bimesenteric trunk, is doc
umented with a selective angiogram, and an embryologic explanation is offer
ed.