Hi Joanna, it is currently an accepted procedure for esophogeal (and I believe lung) tumors/dysplasia. The WONDERDERFUL news is that it "destroys" most pre-cancerous conditions as well as cancer cells. I am not sure whether or not it would be used as an alternative to rad/chemo, but it certainly seems like a possibility. I am still in diapers when it comes to researching these procedures, so I don't want to speculate much more without the information in hand. I have decided to go through with the procedure as a part of their (Roswell) clinical trial, for it is still in that stage for oral conditions. I will not be undergoing until the fall, for you must remain out of direct sunlight (or remain COMPLETELY covered) for up to 8 weeks due to the drugs photosensitivity. I will definately keep you all posted, and again, if anybody wants specifics, please feel free to message me! Thanks, and best wishes to all!!!