Thank you for your query. Sorry for the delayed response.
By now you must have got the test reports and the doctor's opinion on the cause of the lumps. Without examining the child it is difficult to say what can be the reason for it. The lump in the neck can be explained to enlarged lymph
nodes but similar lumps are not seen on the abdomen or back. Hence I suggest you follow the advice of the doctor who is examining your child.
I hope I have responded to your query to your satisfaction.
Wishing your daughter all the best.