Immunoglobulin Light-chain Amyloidosis

**Definition:** A nonproliferative disorder of PLASMA CELLS characterized by excessive production and misfolding of IMMUNOGLOBULIN LIGHT CHAINS that form insoluble amyloid fibrils (see AMYLOID DEPOSITS) in various tissues. Clinical features include LIVER FAILURE; MULTIPLE MYELOMA; NEPHROTIC SYNDROME; RESTRICTIVE CARDIOMYOPATHY, and neuropathies.

**Tree numbers:** - C04.557.595.250 - C18.452.845.500.550 - C20.683.515.507 - C20.683.780.565

**Synonyms:** - AL Amyloidosis - Primary Amyloidosis - Monoclonal Immunoglobulin Deposition Disease - Primary Systemic Amyloidosis - Amyloidosis, Primary - Amyloidosis, Immunoglobulin Light-chain