Sphere of influence. In the field of international relations, a sphere of influence (SOI) is a spatial region or concept division over which a state or organization has a level of cultural, economic, military, or political exclusivity, accommodating to the interests of powers outside the borders of the state that controls it.
Multiple myeloma is named for the clock face appearance of these cancer cells when seen under a microscope. They infiltrate virtually all of a patient's bone marrow. In x-ray images of multiple myeloma, it looks like holes have been punched out of the bone.
Myeloma. 1  Is a type of cancer that begins in the bone marrow. 2  It affects the plasma cells. 3  Belongs to a spectrum of disorders referred to as plasma cell dyscrasia.. 4  Has several forms: 5  Multiple myeloma is most common: More than 90 percent of people with myeloma have this type. Plasma cells are made from B cells, a type of white blood cell that is present in the bone marrow. 2  Healthy plasma cells are part of the immune system, and make proteins called âantibodies,â which help fight infection.