Immunotherapy is a form of cancer treatment that harnesses the power of the body’s own immune system to identify and eliminate cancer. Recently, studies have shown that characterizing the tumor microenvironment as immune “excluded”, “compartmentalized”, or “mixed” can inform immunotherapy treatment strategies and patient outcomes.

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This insight report will delve into the landscape of the tumor microenvironment, classifying tumors as “infiltrated” or “excluded”, with infiltrated tumors further classified as “mixed” or “compartmentalized”.