Erythroplasia of Queyrat Treated with Thorium X. Presented by Dr. Victor H. Witten and Dr. Abraham J. Orfuss.
E. M., a white man aged 67, was first seen at the skin and cancer unit of the University Hospital, New York University Post-Graduate Medical School, on June 10, 1952. He gave a history of a lesion on the penis which had been present for one year.
On examination there was a 6 by 10 mm., oval, sharply defined, red, glistening, slightly elevated plaque on the shaft of the penis just proximal to the coronal sulcus. There was no regional lymph node involvement. The result of a biopsy taken from this area was erythroplasia.
The area was first treated with thorium X (300 μc per cubic centimeter of alcohol) applied locally on June 26. The second treatment was given on July 10. Because of marked erythematous response treatment with thorium X