Therapy using oral or topical photosensitizing agents with subsequent exposure to light. ... (12 Dec 1998) ... 
(fo″to-ke″mo-ther´ә-pe) treatment by means of drugs (such as methoxsalen) that react to ultraviolet radiation or sunlight.
Type: Term Pronunciation: fō′tō-kē′mō-thār′ă-pē Synonyms: photoradiation
photochemotherapy The treatment of cancer by intravenous injection of a photosensitizing agent; such as, hematoporphyrin, followed by exposure to visible light of superficial tumors or deep tumors by a fiberotic probe.