When our plasma cells start producing a single cancer-causing protein rather than an array of antibody-like proteins to protect us, it's one of two arms of the Y-shaped protein that's likely to blame.

When our plasma cells start producing a single cancer-causing protein rather than an array of antibody-like proteins to protect us, it's one of two arms of the Y-shaped protein that's likely to blame.

Elie Fahed, MD: I was waiting to get my paperwork in order, and you were seeing a local doctor, Dr. Alan Grosset. He was helping you, and he did the bone marrow biopsy and then the MRI. Mark Ayen: He ...