Hi, thanks for writing to HCM.
Your description suggests that your mother has
MULTIPLE MYELOMA, a form of
Blood Cancer.
Your description points favouring Multiple Myeloma are
*
Back pain - this is the commonest form of presentation
* presence of monoclonal gammopathy
* "M" spikes on electrophoresis
There are two types of Multiple myeloma -
Kappa type comprising of 70% of patients and Lambda type comprising of 30%.
Generally, this follows a very slow course and will be mostly asymptomatic for many years. At times, it will be diagnosed accidentally only after producing a "Pathological fracture" in bones.
For a complete management, you have to consult a HEMATO
ONCOLOGIST preferably.
Hope this information is helpful. Good luck