True about keloid is
Keloid :

Excess scar tissue that extends beyond wound site.
It has more collogen and vascularity.
Elevated levels of growth factors seen.
Intralesional injection of Triamcinolone or Intralesional excision is used as treatment.
Wide local excision is treatment of choice
It has more collagen and vascularity
Will not spread beyond wound site
Elevated levels of growth factor is not seen