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Erythroplasia of Queyrat with Epitheliomatous Change. Presented by Dr. Carl W. Laymon, Minneapolis.
C. A., a white man aged 46, noticed a small abrasion on the left side of the penis in 1943. It healed rapidly on application of a salve. Again in 1944 and in 1946 a similar area appeared and healed with local treatment. In 1948 a small lesion appeared on the right side and a recurrent lesion on the left side. Biopsies were performed on specimens from both areas. The patient was given 1,500 r of x-rays weekly for three doses to the right side of the penis. No x-ray therapy was given to the lesion on the left side.There is a 2.0 cm. thin, atrophic scar with telangiectasia at the periphery on the right side of the penis. On the left side of the penis is an erythematous irregular, nontender ulcerated area. There is some