my grandmother has red non itching and non hive formed blotches all over her legs, she has a history of non hodgkins lymphoma x20yrs but has been in remission ever since, she went to the doctor yesterday, he ran lab test that were normal but said he had never seen anything like it and it looked like someone threw scolding hot water on her legs, she has to wait a month to see a Derm but could this be cancer coming to the surface of her skin from the lymphoma?