1. Department of Gastroenterology, AP-HP, Henri Mondor University Hospital, Créteil, France
2. Universite Paris Est Creteil, Creteil, France
3. Lymphoid Malignancies Unit, AP-HP, Henri Mondor University Hospital, Créteil, France
4. Department of Pathology, AP-HP, Henri Mondor University Hospital, Créteil, France
5. Department of Nuclear Medicine, AP-HP, Henri Mondor University Hospital, Créteil, France