Answer:
Plasma cells greater than 10% on bone marrow biopsy
Explanation:
Multiple myeloma is a bone marrow cancer that, for now, has no cure, but a treatment that allows long periods of remission.
Multiple myeloma is a cancer that appears in plasma cells, a type of white blood cell that occurs in the bone marrow. The bone marrow is the spongy material found in the center of the largest bones in the body, and it is also where all blood cells are produced.
One of the tests to diagnose multiple myeloma is Bone Marrow Biopsy
It consists of placing a needle inside the bone to take a small sample of bone marrow, usually in the hip bone. The sample obtained is usually called bone marrow aspirate.
This test includes the plasma cell count and is performed both at the beginning and at the end of the treatment. If the plasma cells is greater than 10 % confirm the diagnosis of multiple myeloma.