5-AMINOLEVULINIC ACID (5-ALA), is a non fluorescent prodrug.
Drug60 mg/kg 5-ALA prepared solution given orally, 3-5 hours before induction of anesthesia.
Red light laser given by a Dye laser system, wave length of 635nm, in s dose of 150J/cm for 2000 seconds (33 minutes) will be given to tumor bed. In case of positive margins a second operation and 5-ALA administration or irradiation will be given.