My Niece's, In One Year Went From 100 Liver Enzyme

My niece's, in one year went from 100 liver enzyme to 2500 the specialist in Colorado. had also noticed she had swelling inside her vaginal area no abuse and a small thyroid growth, she has no sighns of cancer her lab work is good except for the liver enzymes. What is this, also he said it might be a growth spurt or an infection,C you give me some insight on this,she is four years old. Thank you Marianne Patty.