C Rothermundt1, C Hader2, S Gillessen3. 1. Department of Oncology/Haematology, Kantonsspital St Gallen, St Gallen, Switzerland christian.rothermundt@kssg.ch. 2. Department of Radiology and Nuclear Medicine, Kantonsspital St Gallen, St Gallen, Switzerland. 3. Department of Oncology/Haematology, Kantonsspital St Gallen, St Gallen, Switzerland.