PD-L1 Tumor Proportion Score Equal to 1

**Semantic type:** Laboratory or Test Result

**Definition:** An immunohistochemical finding indicating that 1 percent of the viable tumor cells in a sample are expressing PD-L1.

**Synonyms:** - CD274 TPS Equal to 1 - PD-L1 TPS =1% - PD-L1 TPS Equal to 1 - PD-L1 Tumor Proportion Score =1% - PD-L1 Tumor Proportion Score Equal to 1 Percent - PDL1 TPS Equal to 1