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tumor-infiltrating lymphocyte therapy

(TOO-mer-IN-fil-TRAY-ting LIM-foh-site THAYR-uh-pee)
A type of treatment in which tumor-infiltrating lymphocytes (a type of immune cell that can recognize and kill cancer cells) are removed from a patient’s tumor and grown in large numbers in a laboratory. These lymphocytes are then given back to the patient by infusion to help the immune system kill the cancer cells. Also called TIL therapy.
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Search NCI's Dictionary of Cancer Terms