淋巴细胞为圆形，核较大，胞质内含有板状嵴线粒体、粗面内质网和嗜天青颗粒。

Lymphocyte is round, there are mitochondrion, rough endoplasmic reticulum and azurophil granule in their cytoplasm.

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细胞形态学上K562细胞原始未分化特性比较明显，HL60细胞质内已有嗜天青颗粒和空泡等细胞分化特征。

MPO was positive in HL60 cells. K562 cells morphology obviously showed a primitive and no-differentiation characteristic.

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