ing episodes of epigastric pain due to a large stone in the main pancreatic duct and a long (approximately 3 cm) stricture at the head of the pancreas (l" Fig. 1 a). She underwent endoscopic retrograde cholangiopancreatography (ERCP), where dilation of the pancreatic duct was performed using an 8-mm biliary dilating balloon (Boston Scientific, Natick, Massachusetts, USA) (l" Fig. 1 b). Four sin...