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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Fotopruebas

Phototesting (FOH-toh-TES-ting)
Special tests used to measure the reaction of the skin to ultraviolet radiation. Phototesting is being used to see if drugs taken by mouth to treat cancer make the skin more sensitive to ultraviolet radiation.

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