Ki-67 Positive Cells Greater than or Equal to 50 Percent

**Semantic type:** Laboratory or Test Result

**Definition:** A semi-quantitative microscopic finding indicating that at least 50 percent of the cells in a sample are detected following staining using an anti-Ki-67 antibody.

**Synonyms:** - Antigen Ki-67 Positive Cells Greater than or Equal to 50 Percent - KI67 Positive Cells Greater than or Equal to 50 Percent - Ki-67 Antigen Positive Cells Greater than or Equal to 50 Percent - Ki-67 Positive Cells 50 Percent or Greater - Ki-67 Positive Cells 50 Percent or More - MKI67 Positive Cells Greater than or Equal to 50 Percent