The uncinate duct runs obliquely draining the anteroinferior part of the uncinate process (black arrowheads). The uncinate process is also drained in part by small branches to the main pancreatic duct (white arrowheads). Asterisk, junction of main and accessory pancreatic ducts; CBD, common bile duct; L, lesser duodenal papilla; Va, ampulla of Vater; DU, duodenum. From: Takahashi S, et al. Surgery 1999;125:178–85. Reprinted with permission.