Multiple and large gallstones can become impacted in the Hartmann's pouch of the gallbladder, leading to chronic inflammation—which leads to compression of the common bile duct (CBD), necrosis, fibrosis, and ultimately fistula formation into the adjacent common hepatic duct (CHD) or common bile duct (CBD). As a result, the CHD/CBD becomes obstructed by either scar or stone, resulting in obstructive jaundice. It can be divided into four types. Type I – No fistula present * Type IA – Presence of the cystic duct * Type IB – Obliteration of the cystic duct Types II–IV – Fistula present * Type II – Defect smaller than 33% of the CHD diameter * Type III – Defect 33–66% of the CHD diameter * Type IV – Defect larger than 66% of the CHD diameter
Mirizzi's syndrome
Hartnup disease
Ascher's syndrome
Meckel's diverticulum
Cord colitis syndrome
Bloom syndrome
Löffler's syndrome
Schnitzler syndrome