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Handmirror cells in childhood acute lymphoblastic leukemia related to immunological phenotype
In 96 cases of childhood acute lymphoblastic leukemia (ALL), handmirror cells (HMCs) were counted in cytospin preparations of washed lymphoblasts obtained at diagnosis. HMC counts were significantly lower in T-ALL as compared to C-ALL (p less than 0.001). In T-ALL and pre-T-ALL 2/35 cases had more than 10% HMCs; in C-ALL 22/41 cases had more than 10% HMCs. In two cases of B-ALL 19% and 36% HMCs were found. Thus, HMC expression in ALL is related to the immunological phenotype, especially found in ALLs originating along the B-cell lineage.
In 96 cases of childhood acute lymphoblastic leukemia (ALL), handmirror cells (HMCs) were counted in cytospin preparations of washed lymphoblasts obtained at diagnosis. HMC counts were significantly lower in T-ALL as compared to C-ALL (p less than 0.001). In T-ALL and pre-T-ALL 2/35 cases had more than 10% HMCs; in C-ALL 22/41 cases had more than 10% HMCs. In two cases of B-ALL 19% and 36% HMCs were found. Thus, HMC expression in ALL is related to the immunological phenotype, especially found in ALLs originating along the B-cell lineage.