I'm a new member. I have a 22 year old son who was diagnosed with a Dandy Walker cyst at age 9 mo. At age 7 he had his first shunt...he now has had 14? (somewhere around there) revisions and is having another next week. He had 5 revisions since November 2009. His distal tibing was placed from his peritoneal cavity into his gall bladder in May...it is now going to be placed in his pleural cavity. He's ready to be pain free.....