Methods
cancer, tumor
ONCOLOGY, CANCER, TUMOR
We performed a retrospective analysis of all patients treated for histologically proven ATC at the Department of Radiation Oncology, Martin Luther University Halle-Wittenberg between 1989 and 2020. Information about the tumor and therapy were extracted from patient records. Information on survival was obtained from cancer registries, the registration office and the discretion of the treating general physician. The retrospective analysis was performed in compliance with the local ethics commission of the Medical Faculty, Martin Luther University Halle-Wittenberg, no. 2020-078.