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Dictionary of Cancer Terms

View in Spanish: Derivado de la hematoporfirina

Hematoporphyrin derivative (HEE-muh-toh-POR-fih-rin deh-RIH-vuh-tiv)
A drug used in photodynamic therapy that is absorbed by tumor cells. When exposed to light, it becomes active and kills the cancer cells.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.