noun (plural hili /ˈhīlī/ /-lē/)Anatomy
An indentation in the surface of a kidney, spleen, or other organ, where blood vessels, ducts, nerve fibers, etc., enter or leave it.
- A laparotomy revealed an unresectable tumor encasing the hepatic arteries, portal vein, and common bile duct in the hepatic hilus.
- The arteries enter at the hilus and are carried in, and branch with, the trabeculae.
- At the center of the concave side, where the ureters and veins issue and arterial vessels and nerves usually enter, is the hilus.
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