There are no clearly-established risk factors for multiple myeloma and it is possible that a combination of factors interact to cause the disease. Thus, there is no method for preventing multiple myeloma.

Myeloma is a condition in which plasma cells become cancerous. It is sometimes referred to as plasma cell dyscrasia or plasma cell myeloma, and most commonly as multiple myeloma (MM). Multiple myeloma is the most common form found in patients.

Yes, multiple myeloma may involve lymph nodes though it usually starts in the bone marrow. I have seen multiple myeloma in lymph nodes and in liver. I am an autopsy pathologist.

myeloma.org (international myeloma foundation)

themmrf.org (multiple myeloma research foundation)

lls.org (leukemia and lymphoma society)

All of these organizations can refer you to myeloma specialists and give more information about treatment.

There are a variety of treatment options for multiple myeloma. Some of these include bone marrow transplants, and radiation therapy.