yes, i have seen tdt positive megakaryocytic leukemia in children; tdt and cd7 positive. EPaietta On Wed, 21 Jan 1998, Jorge Neumann wrote: > > > Dear Dr. Anna, > > I became curious about your answer. I agree with the AML > M0 hypotesis, but have you seen M7 positive for TdT? In the very few cases > we have seen here so far thay were all TdT negatives. > > Jorge Neumann > Santa Casa Hospital > Porto Alegre, Brasil > > On Tue, 20 Jan 1998, Anna Porwit-MacDonald wrote: > > > > > > > Hi, > > The immunophenotype you gave is consistent with AMLM0, but I would do the > > cyt.CD79a and CD61 just to exclude (unlikely) early-B-precursor and M7. > > Best wishes > > Anna > > > > Anna Porwit-MacDonald > > Haematopathology Lab. > > Karolinska Hospital, Stockholm > > > > At 12.11 1998-01-19 -0500, you wrote: > > > > > >We are discussing a case of acute leukemia with the following results: > > >Morphology - 93% undifferentiated blasts. > > >CD 45 POS(DIM), CD7 POS, HLA-DR POS, CD34 POS, CD13POS (DIM), > > >TdT POS. > > >Negative for MPO,CD2, CD3 (surface and cytoplasmic), CD4,CD8, CD19, > > >CD20, CD10, CD14,CD33. > > >Debate-Undifferentiated or MO? (or something else!!?) > > >Comments please! > > > > > >Mike Keeney > > >London Health Science Centre > > >Canada > > > > > > > > Anna Porwit-MacDonald > > Heamatopathology Lab. > > Department of Pathology > > Karolinska Hospital, Stockholm > > anpo@mb.ks.se > > tel.:+46-851775863 > > fax.:+46-851775843 > > > >
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