1. Medico-Surgical Department of Gastroenterology, Hepatopancreatology and Digestive Oncology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
2. Department of Radiology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
3. Department of Radiology, Institut Jules Bordet, Brussels, Belgium
4. Department of Pathology, Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
5. Department of Radiotherapy, Institut Jules Bordet, Brussels, Belgium