Thanks for the query
, hepatospleenomegaly with deranged liver enzymes- May be due to viral or bacterial infection, autoimmune condition, metabolic diseases, collagen
vascular diseases or Idiopathic( condition in which no cause can be found).
Needs thorough investigation Liver Function Test, markers for autoimmune diseases, USG abdomen, may be liver biopsy
to find out the cause of hepatitis and management accordingly.
2) Green colored stool is due to deranged hepatic function, as it is the bile which is giving green color. Normally this bile get converted to its product by various enzymes that gives yellow or brown color to the stool.
3)Even if it is found that your child has autoimmune hepatitis
it has no relation with your IgA nephropathy
So I would suggest you to consult your doc for proper evaluation and then management accordingly.
I hope this answers your query well
Wish you and your family good health