Our expert says:
My first thought would also be a lymph gland but one does not often see this in this area in kids.
It could be a thyroglossal cyst , especially if the bloods are normal. See if it moves if she sticks her tongue out or swallow - then it is attached to the thyroid. This is caused by some foetal tissue left behind during the baby's development and is not harmful, can be removed if very obvious or painful.
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