Sulcus of Rouviere

(A) The scar.

(B) The slit.

(C) The sulcus (open type).

(D) The sulcus (closed type).

A good anatomic landmark to prevent bile duct injury during cholecystectomy is the sulcus of Rouviere, which may have different appearances in different patients. It is the anatomic location of the right posterior pedicle to segments 6 and 7 of the liver. Dissection of the gallbladder and cystic structures should be maintained above this location, which has been dubbed the "line of safety."