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Replaced right hepatic artery

Case contributed by Donna D'Souza
Diagnosis certain
Annotated image

Replaced right hepatic artery (RHA) arising from the superior mesenteric artery (SMA).

Case Discussion

The right hepatic artery arises from the superior mesenteric artery (SMA), also referred to as "replaced to the SMA", in 9 to 15% of the population. It is the most common variant in hepatic arterial anatomy.

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