1. Departments of Clinical Sciences of Companion Animals Faculty of Veterinary Medicine, Utrecht University, P0 Box 80.154, 3508 TD Utrecht, The Netherlands
2. *Departments of Radiology Faculty of Veterinary Medicine, Utrecht University, P0 Box 80.154, 3508 TD Utrecht, The Netherlands
3. †Departments of Pathology, Faculty of Veterinary Medicine, Utrecht University, P0 Box 80.154, 3508 TD Utrecht, The Netherlands