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Platelet Satellitism as Presenting Finding in Mantle Cell Lymphoma
A Case Report

Christine Cesca MD, Jonathan Ben-Ezra MD, Roger S. Riley MD, PhD
DOI: http://dx.doi.org/10.1309/MMYE-VAVP-54LJ-JJ23 567-570 First published online: 1 April 2001


Platelet satellitism surrounding polymorphonuclear neutrophils has been observed almost exclusively in EDTA-treated blood at room temperature. The mechanism underlying this phenomenon is not understood fully. We report a case of platelet rosetting around atypical lymphocytes in peripheral blood smears made from EDTA-treated and untreated blood. Flow cytometry of the peripheral blood sample and immunohistochemical stains of the subsequent bone marrow biopsy specimen revealed a monoclonal B-cell population positive for CD5, CD20, and cyclin D1 and negative for CD3 and CD23; cytogenetic findings revealed a complex karyotype that included t(11;14). These findings were consistent with mantle cell lymphoma. To our knowledge, the finding of platelet satellitism involving mantle cell lymphoma cells in peripheral blood has not been reported previously.

Key Words:
  • Mantle cell lymphoma
  • Platelet satellitism