“…Subsequent studies during the 1980s showed that the high hyperdiploid cases were characterized by the expression of the ''common'' (CD10) ALL antigen (Third International Workshop on Chromosomes in Leukemia, 1981a,b;Kaneko et al, 1982;Williams et al, 1982;Heerema et al, 1985;Smets et al, 1985;Harbott et al, 1987;Heinonen et al, 1988;Michael et al, 1988;Pui et al, 1988b;Fenaux et al, 1989;Secker-Walker et al, 1989;Uckun et al, 1989). As more surface markers were identified and used in immunophenotypic analyses, it gradually became apparent that high hyperdiploid lymphoblasts typically are positive for TdT, HLA-DR, CD10, CD19, CD22, CD24, CD34, and CD66c and negative for CD13, CD33, CD45, CD65, cIg, and sIg Behm et al, 1992; Groupe Français de Cytogé né tique Hé matologique, 1993;Lavabre-Bertrand et al, 1994;Raimondi et al, 1996;Hrušá k et al, 1998;Hruîsá k and PorwitMacDonald, 2002).…”