Table 1.

Classification of duplication of the gallbladder (Figure 7) [4, 5].

Type 1—one cystic duct entering the common bile duct	(i) Gallbladder septum (Figure 7(a)) (ii) Two gallbladders joining at the neck to form a single cystic duct (V duplication) (Figure 7(b)) (iii) Complete separation of two gallbladders, each with its cystic duct, which would join to form a common cystic duct (Y duplication) (Figure 7(c))
Type 2—two cystic ducts entering bile duct separately	(i) Two cystic ducts entering the common bile duct separately (H duplication) (Figure 7(d)) (ii) One cystic duct entering the common bile duct, and the other one entering the right or left hepatic duct (Figure 7(e)) (iii) Bilateral gallbladders with separate cystic ducts (Figure 7(f))