I sent the first message too soon. The "NK-cell" leukemia is CD5+, CD2+, CD3-, CD4+, CD8-, CD57+, CD56- and CD16- but we don't know TRCab. The patient has had some sort of lymphoproliferative process for a long time. This smells like a CD3- T-cell tumor to me. NK cell neoplasms are usually CD56+ and aggressive. Any thoughts? Anyone seen this before? Maryalice Maryalice Stetler-Stevenson Director Flow Cytometry Unit Laboratory of Pathology, NCI, NIH
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