1. Department of Plastic and Reconstructive Surgery, Sarcoma Reference CenterBG‐University Hospital Bergmannsheil Bochum Germany
2. Department of SurgerySt Josef‐University Hospital Bochum Germany
3. Institute of PathologyRuhr‐University Bochum Bochum Germany
4. Institute of RadiologyBG‐University Hospital Bergmannsheil Bochum Germany
5. BG‐University Hospital Bergmannsheil Tübingen Germany