Neoplastic Monocytes and Precursors 20 Percent or More of Bone Marrow 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 bone marrow sample are neoplastic mononcytes.

**Synonyms:** - Neoplastic Monocytes and Precursors 20% or More of Bone Marrow Cells