Multiple Myeloma International Staging System (ISS)
Serum β2-microglobulin (mg/L) and albumin (g/dL) → stage I–III.
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How it works
ISS stages multiple myeloma by β2-microglobulin and albumin for teaching prognosis.
Limits
R-ISS and cytogenetics refine risk; use institutional staging standards.
Educational tool only—not for diagnosis or treatment decisions.