This study included several tests, and laboratory analysis to explore the presence of tumer cell and its classification of the tumer type, by the unit of blood tumer in Ibn-Alather hospital for children in Mosul. The study involved (50) child serum trevisoly suffering leukemia and their age among (5-12) years with both gender. The results compared with another (50) healthy child of both gender and the same age. The analysis involved in accordions to tumer type which included WBC count and

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... ential cells count, platelets count with the measurements of total heamoglobin in the blood in addition to determination the activity of adenosine deaminase in blood serum and corpusles cell hydrolysis. The results revealed that adenosine deaminase activity was increased in comparison with the control group. Haemoglobin level, platelets count, total number of WBC, neutrophil cells were decreased. While lymphocyte cells increased however other types were within normal range. ‫ﺍﻟﻤﻠﺨﺹ‬ ‫ﺘـﺴﺘﻬﺩﻑ‬ ‫ﺍﻟﺘـﻲ‬ ‫ﺍﻟﻤﺨﺘﺒﺭﻴـﺔ‬ ‫ﻭﺍﻟﺘﺤﺎﻟﻴل‬ ‫ﺍﻟﻔﺤﻭﺼﺎﺕ‬ ‫ﻤﻥ‬ ‫ﺍﻟﻌﺩﻴﺩ‬ ‫ﺍﺠﺭﺍﺀ‬ ‫ﺍﻟﺒﺤﺙ‬ ‫ﻫﺫﺍ‬ ‫ﻓﻲ‬ ‫ﺘﻡ‬ ‫ﺍﻟﺴﺭﻁﺎﻨﻴﺔ‬ ‫ﺍﻟﺨﻼﻴﺎ‬ ‫ﻭﺠﻭﺩ‬ ‫ﻋﻥ‬ ‫ﺍﻟﻜﺸﻑ‬ ‫ﻭ‬ ‫ﺘﺼﻨﻴﻑ‬ ‫ﻨﻭﻉ‬ ‫ﺍﻟﻭﺭﻡ‬ ‫ﻓﻲ‬ ‫ﻤﺴﺘـﺸﻔﻰ‬ ‫ﻓﻲ‬ ‫ﺍﻟﺩﻡ‬ ‫ﺍﻭﺭﺍﻡ‬ ‫ﻭﺤﺩﺓ‬ ‫ﺍﻟﻤﻭﺼل‬ ‫ﻓﻲ‬ ‫ﻟﻼﻁﻔﺎل‬ ‫ﺍﻻﺜﻴﺭ‬ ‫ﺍﺒﻥ‬ ‫ﺩﻡ‬ ‫ﺍﻤﺼﺎل‬ ‫ﺍﻟﺤﺎﻟﻴﺔ‬ ‫ﺍﻟﺩﺭﺍﺴﺔ‬ ‫ﻋﻴﻨﺎﺕ‬ ‫ﺸﻤﻠﺕ‬ ) 50 ( ‫ﻤـﺼﺎﺏ‬ ‫ﻁﻔل‬ ‫ﺒﺎﻴﻭﻟﻭﺠ‬ ‫ﺩﺭﺍﺴﺔ‬ ‫ﺍﻟﻠﻭﻜﻴﻤﻴﺎ‬ ‫ﺒﻤﺭﺽ‬ ‫ﺍﻟﻤﺼﺎﺒﻴﻥ‬ ‫ﺍﻷﻁﻔﺎل‬ ‫ﻓﻲ‬ ‫ﺍﻟﺩﻤﻭﻴﺔ‬ ‫ﺍﻟﻤﺘﻐﻴﺭﺍﺕ‬ ‫ﻟﺒﻌﺽ‬ ‫ﻴﺔ‬ .