1. Department of Dermatology AP‐HP Henri Mondor Hospital Créteil France
2. Department of Dermatology Bordeaux University Hospital Bordeaux France
3. INSERM U1053 Bordeaux Research in Translational Oncology (BaRITOn) Cutaneous Lymphoma Oncogenesis Team Bordeaux University Bordeaux France
4. French Cutaneous Lymphomas Study Group (GFELC) Paris France
5. Department of Dermatology AP‐HP, Saint‐Louis Hospital Université de Paris INSERM U976 Paris France
6. Department of Dermatology University of Montpellier and INSERM U1058 Pathogenesis and Control of Chronic Infections Montpellier France
7. Department of Pathology Bordeaux University Hospital Bordeaux France
8. Department of Pathology AP‐HP, Saint‐Louis Hospital Université de Paris INSERM U976 Paris France
9. Department of Pathology AP‐HP Henri Mondor Hospital Créteil France
10. Paris Est Créteil University (UPEC) and IMRB INSERM U955 Team Ortonne (NFL) Créteil France
11. University Paris Est Créteil EpiDermE Créteil France