Hello, The most probable diagnosis is T cell ALL or T cell lymphoma with leukemic presentation. Staining for Tdt and cytoplasmic CD3 will be helpful - if you get both positive: T ALL if only cyt. CD3: T cell lymphoma with leukemic presentation. Kind regards Anna At 18:46 2000-10-23 -0300, you wrote: > I have blood of a patient, 21 years, male. There are a population of >litlle cells (low FSC, low SSC) and low expresion of CD45 (Tipical region >for B leukemias) >The sample are CD19(-), CD20(-), CD10(-), CD34(-),CD13(-), >CD33(-),HLA-DR(-), CD16(-), CD56(-), CD3(-), CD4(+), CD8(+), CD2(-), >CD7(+), CD5 dim. >The mieloperoxidase is more brigth that the normal population, but more dim >that the granulocytes populations ???? >I think that is T leukemia, but I don´t have much experience with T >dissorders. In my country, Chile, principally we see LLA-B >Any idea >-- JUAN LUIS CASTILLO N. CITOMETRIA DE FLUJO HOSPITAL DEL TRABAJADOR >CARDENIO AVELLO 36 CONCEPCION CHILE: PHONE: 56-41-402138 >56-41-329454 FAX: 56-41-402117 E- MAIL: axelyoyi@entelchile.net >http://oncoinmun.bizland.com > Anna Porwit Hematopathology Lab. Department of Pathology Karolinska Hospital, Stockholm Anja.Porwit@ks.se tel.:+46-851774518 fax.:+46-851775843
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