It sounds like there's a kappa light chain myeloma diagnosis or monitoring situation here. Having kappa light chains with an abnormal ratio and a very low M spike is actually a pattern that doctors watch closely.
In light chain myeloma, the abnormal plasma cells only produce the smaller "light chain" part of an antibody — Show Full Answer
It sounds like there's a kappa light chain myeloma diagnosis or monitoring situation here. Having kappa light chains with an abnormal ratio and a very low M spike is actually a pattern that doctors watch closely.
In light chain myeloma, the abnormal plasma cells only produce the smaller "light chain" part of an antibody — in this case, kappa — rather than a full antibody. The kappa/lambda ratio helps track how out of balance things are. A very low M spike with an abnormal free light chain ratio is actually common in light chain myeloma, because the light chains don't always show up strongly on standard M spike tests. Doctors typically rely more on the serum free light chain (SFLC) assay to monitor this type.
One important thing to be aware of with kappa light chain myeloma is kidney health. Light chains are small enough to pass through the kidney's filters, and over time they can cause damage. Symptoms to watch for include:
- Changes in urination
- Swelling in feet or ankles
- Unusual fatigue
- Nausea
- Itching
- Shortness of breath
Keeping up with regular kidney function tests is really important with this type of myeloma. Definitely worth discussing the monitoring plan with the care team to make sure the right tests are being done regularly.
August 4
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