Fig. 6From: Secretin-stimulated MR cholangiopancreatography: spectrum of findings in pancreatic diseases a–e Autoimmune pancreatitis. Axial T2-weighted images (a, b) show loss of the normal pancreatic lobulations at the level of the head and focal obliteration of the pancreatic duct, better demonstrated on conventional MRCP (c). After secretin administration (d, e) the stricture detected in basal phase is solved (duct-penetrating sign)Back to article page