Durie-Salmon staging system


A system used to describe the extent (stage) of multiple myeloma.

The 3 stages in the Durie-Salmon system are based on the amount of hemoglobin (a protein in red blood cells that carries oxygen and gives blood its red colour) and calcium in the blood, the amount of monoclonal protein (M-protein) in the blood or urine and the severity of bone damage (as seen on x-ray). This system also describes 2 substages (A and B), based on the level of creatinine in the blood and how well the kidneys are working.