Department of Haematology, Oncology and Immunology, University Hospital Giessen and Marburg, Philipps University Marburg, Germany, Interdisciplinary Center of Ultrasound, University Hospital Giessen and Marburg, Philipps University Marburg, Germany. Department of Radiology, Hospital Barmherzige Brüder, Salzburg, Austria. Klinik für Innere Medizin, Krankenhaus Märkisch Oderland GmbH Strausberg/ Wriezen, Akademisches Lehrkrankenhaus Medizinische Hochschule Brandenburg "Theodor Fontane", Germany. Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China. Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China. notprovided@emple.com. Department Allgemeine Innere Medizin (DAIM), Kliniken Hirslanden Beau Site, Salem und Permancence, Bern, Switzerland. c.f.dietrich@googlemail.com.