急性白血病的诊断标准
  FAB诊断标准：除临床症状、体征与血象外、骨髓形态学分类是诊断急性白血病的主要依据。尤其是原始细胞（包括原粒、原单核及原淋巴细胞）的百分化。急性髓系白血病的诊断标准如图：

                                   骨髓形态学分类

                 _______________________|_______________________

                 |                                              |

       原、幼红细胞≥50%ANC                                              原、幼红细胞＜50%ANC

              _________|_________                                                      _______|________

              |                               |                                                     |                           |

       原始细胞≥30%     原始细胞＜30%                          原始细胞<30%          原始细胞≥30%

             NEC                        NEC                                NEC                                    NEC

        |                 |_____________________|                        |

     |                            |                                   |

  AML—M6                        MDS                             AML,M0-M5,M7