sorry to send you to a site with a lot of pop-ups. i use a pop-up blocker, so didn't know it was plagued with them.
that's the only site i can find about these markings, & i notice that it hasn't been updated since 2004.
it's interesting that radiotherapy leaves similar markings, but people who aren't recieving radiotherapy are finding these marks.
very odd, & frustrating if you find the marking, i imagine.
[edit on 10-2-2009 by Commander_Koenig]