1. Department of Diagnostic and Interventional Neuroradiology Klinikum rechts der Isar, Technische Universität München Munich Germany
2. Department of Neuropathology Klinikum rechts der Isar, Technische Universität München Munich Germany
3. Department of Diagnostic and Interventional Radiology and Neuroradiology Augsburg University Hospital Augsburg Germany
4. Center for Neuropathology and Prion Research Ludwig‐Maximilians‐Universität München Munich Germany
5. Department of Radiology, Center of Neuroradiology University Hospital Regensburg Regensburg Germany
6. Department of Diagnostic and Interventional Neuroradiology Ludwig‐ Maximilians‐Universität München Munich Germany
7. Department of Neurology Regensburg University Hospital Regensburg Germany