Staging systems

Durie-Salmon staging system in wide use since 1975 attempts to assess 276 tumour bulk but may not provide as good prognostic discrimination as newer systems:

Patients staged as I, II or III & A or B; stage represents tumour burden

Low all of the following:

Stage II

Medium not fitting Stage I or III

Stage III

High one or more of the following:

Monoclonal IgG (g/L)

<50

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