Looking for lymphangioma or hemangiolymphangioma specialists and treatment

Our 13 week old daughter has preliminarily been diagnosed with a hemangioma or lymphangioma or combination of both, under her tongue. We live in Hawaii and have seen the best pediatic ENT on the islands, who has only treated a few of these types of malformations in her carreer. We are looking for the leading experts in the field to get a second opinion and hence find out about treatment options. We are willing to travel anywhere in the nation in order to get the best treatment. Can anyone give us suggestions on which specialists we should start with. I'd really appreciate the help.
Jeanette