ABSTRACT
Radiation therapy alone, without prior surgical resection, rarely, if ever, controls disease adequately.47 Adjuvant radiation therapy is commonly utilized, particularly in extensive angiosarcoma of the scalp. The important issue is the ability to determine margins. Margins are poorly delineated in most angiosarcomas and peripheral biopsies are often needed to ensure that the radiation field is adequate. Rotational arc electron beam and conventional radiation therapy have both been utilized.48,49 Technical issues of radiation therapy to the scalp have been studied. In the main, this requires detailed three-dimensional planning with rotational techniques to ensure uniform distribution of the dose.50
