New Revised Standard Version
the two kidneys with the fat that is on them at the loins, and the appendage of the liver, which you shall remove with the kidneys.

Contemporary English Version
as well as the lower part of the liver and the two kidneys with their fat.

New American Bible
as well as the two kidneys, with the fat on them near the loins, and the lobe of the liver, which is removed with the kidneys.

Douay-Rheims Bible
With the kidneys, and the fat that covereth the belly and all the vitals and both the little kidneys, with the fat that is about the flanks, and the caul of the liver with the little kidneys.

With the kidneys, and the fat that covereth the belly and all the vitals and both the little kidneys, with the fat that is about the flanks, and the caul of the liver with the little kidneys.

the caul

Leviticus 3:4 The two kidneys with the fat wherewith the flanks are covered, and the caul of the liver with the two little kidneys.