白血病前期 (白前 )可表现为多种疾病形式 ,血液学的改变也并非都如在ＭＤＳ所见的病态造血表现 ,尚可有某些无规律性变化。现将我们所见 3例白前的特殊临床表现和血液学异常报告如下 :1　临床病例例 1,男 ,11岁 ,因间断发热咽痛 2周 ,于 1995年 7月 2 4日入院。查体 :Ｔ3 8.2 Pre-leukemia (white pre-) can be manifested as a variety of disease forms, hematological changes are not all as seen in the MDS pathological hematopoietic manifestations, there may be some irregular changes. Now we see 3 cases of white before the special clinical manifestations and hematological abnormalities are reported as follows: 1 clinical case 1, male, 11 years old, due to intermittent fever and sore throat for 2 weeks, on July 24, 1995 admission. Physical examination: T3 8.2