Are sFLC measurements helpful in patients with AL amyloidosis?
AL amyloidosis is a difficult disease to diagnose because existing serum and urine tests are not sufficiently sensitive to identify all patients. sFLC measurements not only identify more patients than electrophoresis tests of serum and urine but also they are important for monitoring disease progress. The short serum half-life of FLCs makes them a mandatory test for evaluating responses to treatment and identifying relapse.