Humira Injections & Cancer?

My husband had plaque psoriasis on his scalp, belly button and the top of his crack. It wasn't that bad either. It unfortunately got worse with some kind of ointment the dermatologist had given him..so the doctor then put him on Humira. My husband injected this into one thigh one week and the other thigh the next. Long story short...it didn't help. He started having a pain in his knee, and it gave completely out. This was about 1 year after the treatments. MRI was done and he was diagnosed with MM (multilple myeloma). A plasma/blood cancer. The worst part of it that had eaten through his bone was exactly where the Humira injectections were given. He had surgery to put a metal rod down his leg and patch his knee to avoid a knee replacement and a broken leg. He's finished his radiation, still going through radiation and calcium infusions. I see on the commercials that it says can cause Lymphoma and "other blood cancers". Does anyone know if Myeloma is one of the "other" cancers?? I'm curious to know. His oncologists acts curious also, but doesn't won't to get involved I guess. And YES, Psoriasis, like Cancer, affects everyone who loves the person with it, not just them. Thank you for allowing me to post. My best to everyone.