Strange you should post this. I found a very good site a few days ago with LS info: detailed yet understandable. There's also some good illustrations of shunts that you can click on there. I had thought of posting it due to the many threads and questions about LS but hadn't gotten around to it. Anyway, thanks for posting the thread and here's the link to the site I found
CANINE LIVER SHUNT If you go there, click on at the bottom where it says "Additional Info: Recognition and Management".