Hi, The pre-B ALL (cyt.IgM+) are very rare in adults. The most important negative prognostic factor in adult ALL is the presence of 9;22 translocation (Ph+) and these are usually sc "common" ALL. Best wishes Anna At 09.44 1999-02-03 -0500, you wrote: > >Dear Flow collegues, >We are currently using the presence of cIgM to differentiate precursor B-ALL >or pre-pre B-ALL (cIgM neg) from pre-B ALL (cIgM pos) in pediatric patients. >Apparently pediatric patients with pre B-ALL do worse than patients with >precursor B-ALL (pre-pre B ALL). Does the same prognosis apply to adults >with B-ALL? The literature is not quite clear on this issue from what I >remember. >Thanks for your help >Andrea Illingworth >Dahl-Chase Diagnostic Services/Flow Cytometry >333 State Street >Bangor, Maine 04401 >(207)990-4855 > > > 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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