the term "bone lesion" was used to describe one?

Hi! I had a 2-year post-FNA thyroid ultrasound done recently. After the new ultrasound, it was recommended that 2 nodules have FNA (one is a repeat FNA).

I understand most of the terms used in the descriptions of the nodules and I understand there are features in both that indicate the need for FNA. (Microcalcifications, "internal marked hypervascularity", solid in nature).

However the term "bone lesion" was used to describe one of the nodules. I am unfamiliar with this term and can't find any information about it. Could you explain what a bone lesion is?

Also what is a multinodular goiter?

Thanks so much!