Figure 2).

Endoscopic retrograde cholangiopancreatography of a 76-year-old man with autoimmune pancreatitis and immunoglobulin G4-associated cholangitis. Multiple strictures are present in the hilar hepatic and intrahepatic bile ducts and irregular narrowing of the main pancreatic duct. Courtesy of Dr Terumi Kamisawa, Department of Internal Medicine, Tokyo Metropolitan Komagome Hospital (Tokyo, Japan). Reproduced with permission from reference 66