I have a case that immunophenotypically looks like hairy cell leukemia (monoclonal kappa, CD20 bright, CD22 bright, CD103+, CD11c+, CD19+, FMC7 bright and negative for CD10, CD5,and CD23, however the CD25 is negative). The peripheral blood smear looks like hairy cell. The clinician from another institute reports the bone marrow, which I haven't seen, doesn't look like hairy cell and the patient is not low in platelets. She thinks it may be splenic marginal zone lymphoma. Has any one seen CD103+ on a real splenic marginal zone lymphoma? Maryalice Maryalice Stetler-Stevenson Director Flow Cytometry Unit Laboratory of Pathology, NCI, NIH
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