AL amyloidosis patients with low amyloidogenic free light chain levels at first diagnosis have an excellent prognosis

The difference between involved minus uninvolved serum free light chains (dFLC) has been established as an invaluable hematologic parameter in systemic amyloid light chain (AL) amyloidosis. However, patients with an initial dFLC level P P P P P P = .003) and renal survival (HR = 0.56, P = .020). Patients with a dFLC level P 20 mg/L.