P1257: MOLECULAR CHARACTERIZATION AND CLONAL EVOLUTION OF MYCOSIS FUNGOIDES. (23rd June 2022) - Fléchon, L.; Arib, I.; Dutta, A.; Sklanvenitis Pistofidis, R.; Stewart, C.; Dubois, R.; Poulain, S.; Copin, M.-C.; Javed, S.; Nudel, M.; Hasan Bou Issa, L.; Ouelkite-Oumouchal, A.; et al.