With KTS, a surgery can be done if the deep venous system is intact. As to your portwine stain, it is a part of KTS; unfortunately a PWS cannot be taken off, only lasered (and it does not always work).
You seem to be in very good hands with Dr. Tan. For more information and support on the Web, I suggest you go to www.ktfoundation.com
I hope this helps a little. Good luck. And keep us posted with developments.
Lise (Montreal, Canada, I have AVM of the lip)