This is either a lymph edema in the cysterna chyly vessel system (see diagram in my liver flush book, as Owen mentioned, or due to stricture in the ascending colon that causes a backup of waste matter leading into the samll intestine. In both cases, having a few colonics may be necessary. If the liver and gallbladder don't open during liver flushes, it is almost always due to such a stricture or obstruction.
Don't omit the Epsom salts, they keep the bile ducts relaxed so that stones can travel easily.