To assess the shape and frequency of the inferior accessory hepatic fissure, authors observed 14 cadavericlivers and 100 abdominal CT scans. The inferior accessory hepatic fissure was present in eight of 14 cadavericlivers and eleven of 100 abdominal CT scans. A shallow notch was present in 46 of 100 CT scans and many of thesenotches may represent either shallow or deep fissures. The inferior accessory hepatic fissure is not a rareanatomic variation as the fissusre was encountered in more than half of the cadavers and CT scans.