Fig. 3

Time to treatment failure. The swimmer plot shows the course of the individual patients labeled at the left side. The radiological diagnosis is indicated by color-coded dots (yellow: MRI, orange: MRI and MR-perfusion, purple: PET). The color-coded diamonds indicate the treatment failure of the single-shot bevacizumab (green: treatment of recurrent edema with corticosteroids, blue: treatment of recurrent edema with bevacizumab, blue border: resumed bevacizumab as the symptoms did not completely resolve, red: recurrent tumor, black: death of the patient because of recurrent tumor). Median time from single-shot to time of treatment failure of any cause) was three months