This is a brief report based on my observation of 500 cases treated with radium during the last five years.
A great deal of the data and technic presented herewith belonged to the late Dr. George Stuart Willis. Approximately 1 gm. of the radium element in needles, tubes, plaques and packs has been available for use.
Several definite conclusions can be drawn from the observation of these cases, but further study with improved technic over a longer period of time will be necessary to determine the final status of radium therapy in neoplasms of the upper air passages. I am firmly convinced that one who uses radium intelligently must know the physics and chemistry of the subject, the biologic effects, and the technic of application. It would seem probable, therefore, that the best results will be obtained by the cooperation of the radium therapist and the skilled nose and throat