Hello – Liver issues are a rare side effect of both methimazole and PTU, although methimazole generally has a better safety track record. The good news is that when patients experience this side effect, the issue usually resolves once the meds are withdrawn.
I’m not familiar with hepatic hemangioma being associated with PTU, but that would be a good question for your endocrinologist.
Hope that you get good news back from your testing tomorrow!