First use of radiation for the treatment of arteriovenous malformation.

In 1921, Norwegian neurosurgeon Vilhelm Magnus (1871-1929) described the first use of radiation for the treatment of an arteriovenous malformation (AVM) in his monograph, Bidrag til hjernechirurgiens klinik og resultater. Seeing as this monograph has never been widely translated nor digitized, the authors discuss the impact of Magnus' original work and the ethics surrounding its citation. The senior author of this paper gained access to and directly translated key sections of Magnus' publication. Without Norwegian language skills, reading and understanding Magnus' text would have been impossible. Magnus described the use of radiation therapy in a single patient found to have an AVM (or "angioma"). He states that she was "well" 8 years later. No other information on that treatment is given, but for good reason Magnus has been given credit in the literature for the first use of radiation of any kind to treat a person with AVM. Most papers that have referenced Magnus' monograph cite it even though it is probable that the authors did not see it, let alone read its contents. While it is appropriate that his innovation has been properly credited, the authors discuss the limits of citing publications sight unseen.