I have developed some linear looking skin lesions. They begin by looking like flat age spots then become slightly raised. They are quite itchy. Most are on my sides & back. I am 55 years old, have fair skin but have always stayed out of the sun or used sun block. People generally think I am 8-10 years younger than I am. I had a horseback riding accident resulted in a compoun tib fib fracture. Been dealing with for 16 months, (6 surgeries, 2 infections, skin graft, & finally a bone graft due to a nonunion of tibia) What do you think this skin problem is?