To assess the shape and frequency of the inferior accessory hepatic fissure authors observed 14 cadaveric liver and 100 abdominal CT scans. The inferior accessory hepatic fissure was present in eight of 14 cadaveric livers and eleven of 100 abdominal CT scans. A shallow notch was present in 46 of 100 CT scans and many of these notches may represent either shallow or deep fissures. The inferior accessory hepatic fissure is not a rare anatomic variation as the fissure was encountered in more than half of the cadavers and CT scans.