Leukemia, Plasma Cell

**Definition:** A rare, aggressive variant of MULTIPLE MYELOMA characterized by the circulation of excessive PLASMA CELLS in the peripheral blood. It can be a primary manifestation of multiple myeloma or develop as a terminal complication during the disease.

**Tree numbers:** - C04.557.337.595 - C04.557.595.500.500 - C15.378.508.595 - C20.683.515.845.500

**Synonyms:** - Plasmacytic Leukemia - Leukemia, Plasmacytic - Plasma Cell Leukemia