1. Dermatology Department Saint‐Louis HospitalAP‐HP Paris France
2. INSERM U976Human Immunology Pathophysiology and Immune Therapies Paris France
3. Université de Paris Paris France
4. Dermatology Department Université de Bordeaux BordeauxFrance
5. Pathology Department Henri Mondor HospitalINSERM U955Université Paris EstAP‐HP ParisFrance
6. Dermatology Department Henri Mondor HospitalINSERM U955Université Paris EstAP‐HP Paris France
7. Pathology Department Saint‐Louis HospitalAP‐HP Paris France
8. Dermatology and Cutaneous Oncology Estaing University HospitalUniversité de Clermont‐Ferrand Clermont‐Ferrand France
9. Pathology Department NHE Clermont et SIPATH UNILABS Clermont‐Ferrand France
10. Dermatology Department Cochin HospitalAP‐HP ParisFrance
11. Pathology Department Cochin HospitalAP‐HP Paris France
12. Dermatology Department Cahors Hospital Toulouse France
13. Pathology and Cytopathology Department Institut Universitaire du Cancer Toulouse Toulouse France
14. Pathology Department Dijon Bourgogne University Hospital DijonFrance
15. Dermatology Department Dijon Bourgogne University Hospital Dijon France
16. Dermatology Department Rouen University HospitalINSERM U1234Rouen Institute for Research and Innovation in Biomedicine RouenFrance
17. Pathology Department Rouen University HospitalINSERM U1234Rouen Institute for Research and Innovation in Biomedicine Rouen France
18. Dermatology Department Montpellier University Hospital Montpellier France
19. Department of Dermatology and Oncodermatology Aix‐Marseille UniversityAP‐HMTimone Hospital MarseilleFrance
20. Department of Pathology Aix‐Marseille UniversityAP‐HMTimone Hospital Marseille France
21. Dermatology Department Robert Debré University Hospital Reims France
22. Pathology Department Reims University Hospital Reims France
23. Dermatology Department Nantes University Hospital NantesFrance
24. Pathology Department Nantes University Hospital Nantes France
25. Dermatology Department Claude Huriez University HospitalINSERM U1189Université de Lille Lille France
26. Pathology Department Claude Huriez University Hospital Lille France
27. Dermatology Department Avicenne HospitalAP‐HP Paris France
28. Dermatology Department Grenoble University Hospital Grenoble France
29. Dermatology Department Pité‐Salpêtrière HospitalAP‐HP Paris France
30. Dermatology Department Minjoz Hospital, Besancon, France, INSERM U1098, University of Franche Comté EFS Bourgogne Franche‐Comté and Franche‐Comté University Besançon France
31. Pathology Department Saint‐André Hospital Bordeaux University Hospital INSERM U1053 – UMR BaRITOn, Eq 3 Oncogenèse des Lymphomes Cutanés Université de Bordeaux Bordeaux France