I find that their is a lot of misinformation about hemangiomas, even from medical professionals (i.e. midwife) whom we put a lot of trust and faith into their opinions. Sadly though, I've come to realize that we need to do our own research and educate ourselves to make informed decisions.
I also think it would be beneficial for you to speak with a specialist. Many are great, and will give you an opinion via email. For example, you can send Dr. Waner a email by going to his clinics website (NYC Vascular Anomolies). Sorry don't have the email address handy.
Wishing you and your little one the best of luck!