Neoplastic Plasma Cells 20 Percent or More of Peripheral Blood White Cells

**Semantic type:** Laboratory or Test Result

**Definition:** A semi-quantitative microscopic finding indicating that at least 20 percent of the nucleated cells in a peripheral leukocyte sample are neoplastic plasma cells.

**Synonyms:** - Neoplastic Plasma Cells Greater than or Equal to 20 Percent of Peripheral Blood White Cells