In making this presentation before the Dermatological Section of the American Medical Association, I want to acknowledge my great indebtedness to the dermatologists of the country, and particularly to our old friends, Duhring, Hartzell, Stelwagon, and Shoemaker, who elected me to the Dermatological Society in 1900, not because I was a dermatologist but because I was a radiologist, and later, I was made an Honorary Member. In those early days, I registered with and attended the Dermatological Section of the American Medical Association, and I attended those meetings.
In the study and treatment of the hemangiomata, I have also had their splendid cooperation. Prof. M. B. Hartzell, of the University of Pennsylvania, was one of the first who referred a patient to me for the treatment of cavernous hemangioma by radium, in 1918.
I have been interested in the treatment of hemangiomata since 1913, and more
PFAHLER GE. The Treatment of HemangiomaChiefly by Irradiation. AMA Arch Derm. 1955;72(5):425–437. doi:10.1001/archderm.1955.03730350027006