Rectal carcinoma: treatment with Papillon technique and fiberoptic-guided methods.

An adaptation of the Papillon technique was developed in which a superficial x-ray machine was used for treatment of small superficially invasive rectal carcinomas. Modification of the proctoscope-treatment cone apparatus, including addition of a fiberoptic scope, allows confirmation of accurate cone placement throughout the entire treatment. There is no personnel exposure to radiation. Measured physics beam characteristics are clinically comparable to those reported for the Papillon treatment beam.