目的探讨8号染色体三体（8三体）对急性粒单、单核细胞白血病（M4、M5）细胞生物学及临床特征的影响。

Object:To evaluate the prognostic impact of trisomy 8 on cytobiological and clinical features in acute myelomonocytic and monocytic leukemia (M4, M5).

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而对于多倍体生物，如体细胞中每条染色体具有三个或三个以上的拷贝，二体或双体就是一种非整倍体状况。

For organisms that normally have three or more copies of each chromosome (those that are triploid or above), disomy is an aneuploid chromosome complement.

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