P593: MULTIDIMENSIONAL ANALYSIS OF THE B CELL RECEPTOR OFFERS INSIGHT INTO THE ONTOGENETIC RELATIONSHIP OF MONOCLONAL B-CELL LYMPHOCYTOSIS WITH CHRONIC LYMPHOCYTIC LEUKEMIA. (23rd June 2022) - Agathangelidis, A.; Galigalidou, C.; Iatrou, A.; Zaragoza-Infante, L.; Scarfò, L.; Maniou, M. C.; Ranghetti, P.; Pechlivanis, N.; Junet, V.; Skaftason, A.; Tsagiopoulou, M.; Psomopoulos, F.; et al.