Yeah, never heard of it and I doubt it's even a proper term for anything. People make up all sorts of names for things for no reason. "Spread scar" sounds like a scaremongering name.
F&P we're not still talking about the same forehead scar as before are we? Have you seen that derm yet?
I posted the question to realself a while a go, and just the other day I'd gotten a reply.
I haven't seen a derm yet. My doctor is more concerned with my mental health, though she said next time I come see her she can give me a referal to a derm if it'd make me feel better.