Dilation of the bile ducts, usually as a sequel to obstruction. ... Origin: chol-+ G. Angeion, vessel, + ektasis, a stretching ... (05 Mar 2000) ... 
(ko-lan″je-ek´tә-sis) dilatation of a bile duct.
Type: Term Pronunciation: kō-lan′jē-ek′tă-sis Definitions: 1. Dilation of the bile ducts, usually as a sequel to obstruction or from a congenital lack of a portion of the ductal wall.