My 17 yr.old grandson got what seemed like tonsiliti a mo. ago-had pus pockets on his tonsils-went and had a throat culture for strept that came back negative-then about a week later developed jaundice and has gone to a pediatric gastorenterologist-she has run all the tests for hep ABC that came back negative-also mono tests--did 2 ultrasounds and saw gallbladder "sludge" and put him on ursodil {sp} and did a liver biopsy and an MRI recently-his enzymes and billirubin are way up- They are very upset as they cant seem to find out the cause.-Meanwhile he is so yellow . He has a low grade temp and diarrhea-he has had Vit K intrvenously and also an injection of vit K. -He is 5"11 and weighed 145 now is down to 128-They have sent the liver biopsy to have a 2nd opinion on it-they are leaning toward Wilson's disease- Is there anything else that can be done to find out the cause? they also checked for cyclomegalovirus{sp} and that came back negative-