=====Michael Sabel===== Professor, Department of Neurosurgery Head of Center of Neuro-Oncology University Hospital Düsseldorf Düsseldorf, Germany Dr. Sabel is a leading oncological neurosurgeon in Germany running a high volume practice in primary brain tumours and metastases. He is involved in numerous oncological trials and has high interest in education and training. During the course he will run hands-on workshops on ultrasonic aspirators in animal tissue including proper use, tips and tricks and scientific basis. It is expected that all course delegates will have the opportunity to undergo hands-on training by Professor Sabel.