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A MyMyelomaTeam Member asked a question 💭
West Monroe, LA
December 4, 2025
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Are light chain kappa considered cancer cells in myeloma?

Yes, light chain kappa refers to a type of abnormal protein produced by cancerous plasma cells in myeloma. In light chain myeloma, the cancer cells produce only the light chain part of antibodies, rather than complete antibodies.

There are two types of light Show Full Answer

Are light chain kappa considered cancer cells in myeloma?

Yes, light chain kappa refers to a type of abnormal protein produced by cancerous plasma cells in myeloma. In light chain myeloma, the cancer cells produce only the light chain part of antibodies, rather than complete antibodies.

There are two types of light chains: kappa and lambda. When you have kappa light chain myeloma, your cancerous plasma cells are specifically making excess kappa light chain proteins.

These light chains are smaller protein fragments that can pass through your kidneys more easily than complete antibodies. This makes them potentially more harmful to kidney function, as they can clog the kidney's filters and cause damage over time.

Light chain myeloma represents about 15-20 percent of multiple myeloma cases, and it carries a higher risk of kidney complications compared to other types of myeloma.

December 4, 2025

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