First things first. Check the definition of the word "Myeloma". I believe that it is blood related, but CHECK IT. The decending numbers (39,000 to 19,000) I believe refer to the white blood cell count found in a sample of blood, typically 1 cc or cubic centiliter. The drop in the white cell count means that the body is being successful in fighting off the cancer infection, and that it is no longer overproducing white blood cells.