Paraproteinemias

**Definition:** A group of related diseases characterized by an unbalanced or disproportionate proliferation of immunoglobulin-producing cells, usually from a single clone. These cells frequently secrete a structurally homogeneous immunoglobulin (M-component) and/or an abnormal immunoglobulin.

**Tree numbers:** - C15.378.147.780 - C20.683.780

**Synonyms:** - Paraproteinemia - Paraimmunoglobulinemia - Paraimmunoglobulinemias