CD33 Expression 50 Percent or More of Neoplastic Cells

**Semantic type:** Laboratory or Test Result

**Definition:** A semi-quantitative immunochemistry finding indicating that expression of CD33 was detected in at least 50 percent of the cells in a tumor sample.

**Synonyms:** - CD33 Antigen Expression 50 Percent or More of Neoplastic Cells - CD33 Expression 50 Percent or Greater of Neoplastic Cells - CD33 Expression Greater than or Equal to 50 Percent of Neoplastic Cells - CD33 Molecule Expression 50 Percent or More of Neoplastic Cells - Myeloid Cell Surface Antigen CD33 Expression 50 Percent or More of Neoplastic Cells - SIGLEC-3 Expression 50 Percent or More of Neoplastic Cells - SIGLEC3 Expression 20 Percent or More of Neoplastic Cells - gp67 Expression 50 Percent or More of Neoplastic Cells - p67 Expression 50 Percent or More of Neoplastic Cells