What term describes a tumor of red bone marrow?

The term that describes a tumor of red bone marrow is myeloma. Myeloma specifically refers to multiple myeloma, which is a cancer that originates in the plasma cells found in the bone marrow. These plasma cells are responsible for producing antibodies, and in multiple myeloma, they become abnormal and proliferate uncontrollably, leading to various health issues.

Understanding myeloma's association with red bone marrow is crucial because red bone marrow is where blood cell production occurs, including the formation of plasma cells. In contrast, osteosarcoma refers to a type of bone cancer that originates in the osteoblasts, which are the cells responsible for bone formation, but it does not specifically relate to red bone marrow. Chondroma involves tumor growth from cartilage and is unrelated to bone marrow specifics. Leukemia pertains to a cancer of blood-forming tissues and primarily affects white blood cells, also not linking directly to red bone marrow tumors in the same regard as myeloma.