Question 1

Importance of the Test

Accepted Answer

Determines the viability of using immunotherapy drugs. Avoids treatments that cancer cells may not respond to. Provides accurate information on tumor behavior and immune interaction.

Question 2

When is this test needed?

Accepted Answer

Non-Small Cell Lung Cancer (NSCLC). Bladder and urothelial cancers. Melanoma (Skin Cancer). Triple-Negative Breast Cancer.

Question 3

Understanding Results

Accepted Answer

Positive Result: High protein expression suggests benefit from immunotherapy. Negative Result: May indicate the need for alternative treatments like chemotherapy. Decisions are often based on the Tumor Proportion Score (TPS).

Precision Guide for Immunotherapy - PD-L1 Immunohistochemistry (IHC) Testing