Thanks for your question on Health Care Magic.
I can understand your concern.
Multiple myeloma, leukemia and lymphoma, all are blood malignancies.
Lymphoma involves lymphnodes and
lymphatic system. Multiple myeloma involves myeloid cells of
bone marrow.
Leukemia involves white blood cells like leukocyte.
So all are
blood cancer involving different blood cells.
Treatment protocols are also different.
They do share some common symptoms like
low grade fever, weakness, weight loss, anorexia etc.
Bleeding through gums, joints and skin is common with leukemia. Bone pain and fractures are common with multiple myeloma.
Cervical swelling due to enlarged lymphnodes is common in lymphoma.
Hope I have solved your query.
Wishing good health to your mother.
Thanks.