This digestive process relies substantially on the liver's efficient manufacture and secretion of bile, a potent, greenish - brown fluid that travels from the liver via the biliary system (an elaborate network of minuscule channels called biliary ducts) to the gall bladder. (www2.vet.cornell.edu)
This problem is also called extra-hepatic biliary duct obstruction (EHBDO). (2ndchance.info)
However, there is renewed hope that this may one day change, with recent findings from research conducted at MBI revealing how liver cells already possess the ability to eliminate excess bile from tubes located inside the liver, which feed bile into the biliary ducts. (sciencedaily.com)