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本文对38例小儿急性淋巴细胞型白血病(ALL)的骨髓原始淋巴细胞的过碘酸Schiff(PAS)染色反应进行数量上分级,以探讨PAS阳性的程度与预后的关系。方法:每个标本都由三个观察者各自在油镜下观察200个原始细胞,根据胞浆中PAS阳性颗粒数按0～4给每个原始细胞计分,按平均值将病人分组。0-150分为低组,151～450分为中等组,450分以上为高组。结果:PAS记分与年龄无显著性差异;但低组男性的比例相当大(占92%),中等组为38%,高组为
In this study, we performed quantitative grading of periodic Schiff (PAS) staining of bone marrow primitive lymphocytes in 38 children with acute lymphoblastic leukemia (ALL) to investigate the relationship between the degree of PAS positive and prognosis. Methods: Each specimen was observed by two observers under oil immersion in 200 primitive cells. The number of PAS positive particles in the cytoplasm was scored on a scale of 0-4 for each of the original cells. The patients were grouped according to the average value. 0-150 is divided into low group, 151-450 is divided into medium group, and 450 is higher than high group. Results: There was no significant difference in PAS scores with age; however, the proportion of men in the low group was quite large (92%), 38% in the middle group, and the high group was