Fig. 2. Representative FISH signal patterns using LSI BCR/ABL dual color dual fusion probe. (A) Metaphase cell, negative, 2R2G, (B) interphase nuclei carrying positive reciprocal t (9;22), 2F1R1G, (C) variant t (9;22), 1F2R2G, (D) ABL1 deletion, 1F1R2G, (E) BCR deletion, 1F2R1G, (F) ABL1-BCR deletion, 1F1R1G.

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