Sad news—Def Leppard guitarist Vivian Campbell ‘s cancer has returned and he has pulled out of the band’s tour as a result. The 52-year-old has documented his battle with Hodgkin’s lymphoma, with affects the lymphatic system, on Facebook. He wrote on Friday, June 19, “I’m saddened by the fact that my cancer has returned. However, I’m beyond consolation that it’s return will prevent me from being able to do my job for a while.