Christophe Bontoux, MD a, Adèle De Masson, MD, PhD b, c, Olivia Boccara, MD d, Christine Bodemer, MD, PhD d, Sylvie Fraitag, MD e, Brigitte Balme, MD f, Nathalie Franck, MD g, Agnès Carlotti, MD h, François Comoz, MD i, Laurence Verneuil, MD, PhD j, Jean-François Brasme, MD k, Mylène Duplan, MD k, Anne Croué, MD l, Isabelle Templier, MD m, Helmut Beltraminelli, MD n, Olivier Dereure, MD, PhD o, Vanessa Szablewski, MD p, Céline Thevenin, MD q, Serge Boulinguez, MD r, Roland Viraben, MD r, Emilie Tournier, MD s, Laurence Lamant, MD, PhD s, Nicolas Ortonne, MD, PhD t, Saskia Ingen-Housz-Oro, MD u, Florence Beckerich, MD v, Florent Grange, MD, PhD w, Anne Durlach, MD x, Florent Amatore, MD y, Eric Frouin, MD z, Elizabeth McIntyre, MD, PhD aa, Vahid Asnafi, MD, PhD aa, Rathana Kim, MD bb, Emmanuelle Clappier, MD, PhD bb, Jean Soulier, MD, PhD bb, Nicolas Boissel, MD, PhD cc, Hervé Dombret, MD, PhD dd, Martine Bagot, MD, PhD b, c, Maxime Battistella, MD, PhD a, c, ⁎
for theGroupe Français d’Etude des Lymphomes Cutanés (GFELC)
a Department of Pathology, Saint-Louis Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
b Department of Dermatology, Saint-Louis Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
c Unité Mixte de Recherche (UMR) 976, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris University, Paris, France
d Department of Dermatology, Hôpital Necker Enfants-Malades, Assistance Publique-Hôpitaux de Paris, Paris, France
e Department of Pathology, Hôpital Necker Enfants-Malades, Assistance Publique-Hôpitaux de Paris, Paris, France
f Department of Dermatology, Centre Hospitalier Lyon-Sud, Hospices Civils de Lyon, Lyon, France
g Department of Dermatology, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
h Department of Pathology, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
i Department of Pathology, Centre Hospitalier Universitaire (CHU) Caen, Caen, France
j Department of Dermatology, Centre Hospitalier Universitaire (CHU) Caen, Caen, France
k Department of Pediatric Hematology, CHU Angers, Angers, France
l Department of Pathology, CHU Angers, Angers, France
m Department of Dermatology, CHU Grenoble, Grenoble, France
n Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
o Department of Dermatology, CHU Montpellier, Montpellier, France
p Department of Pathology, CHU Montpellier, Montpellier, France
q Department of Immunology, CHU Montpellier, Montpellier, France
r Department of Dermatology, CHU Toulouse, Toulouse, France
s Department of Pathology, CHU Toulouse, Toulouse, France
t Department of Pathology, Henri Mondor Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
u Department of Dermatology, Henri Mondor Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
v Department of Clinical Hematology, Henri Mondor Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
w Department of Dermatology, CHU Reims, Reims, France
x Department of Pathology, CHU Reims, Reims, France
y Department of Dermatology, Timone Hospital, Assistance Publique-Hôpitaux de Marseille, Marseille, France
z Department of Pathology, CHU Poitiers, Poitiers, France
aa Laboratory of Onco-Haematology, Hôpital Necker Enfants-Malades, Assistance Publique-Hôpitaux de Paris, Institut Necker-Enfants Malades, INSERM U1151, Paris, France
bb Laboratory of Hematology, Saint-Louis Hospital, Assistance Publique-Hopitaux de Paris, INSERM UMR 944 and Centre National de la Recherche Scientifique UMR 7212, Paris, France
cc Adolescent and Young Adult Hematology Unit, Saint-Louis Hospital, Assistance Publique-Hopitaux de Paris, Research Unit EA-3518, Paris University Paris, France
dd Department of Clinical Hematology, Saint-Louis Hospital, Assistance Publique-Hopitaux de Paris, Research Unit EA-3518, Paris University Paris, France