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American Journal of Pathology, Vol 141, 11-17, Copyright © 1992 by American Society for Investigative Pathology

REGULAR ARTICLES

Inconsistency of the immunophenotype of Reed-Sternberg cells in simultaneous and consecutive specimens from the same patients. A paraffin section evaluation in 56 patients

WS Chu, SL Abbondanzo and G Frizzera
Department of Hematologic and Lymphatic Pathology, Armed Forces Institute of Pathology, Washington, DC 20306-6000.

Both immunophenotypic overlaps between Hodgkin's disease (HD) and non- Hodgkin's lymphoma (NHL), and evolution of one into the other have been reported. However, the underlying assumption that the antigenic expression of Reed-Sternberg (RS) cells is consistent in the same patient has not been evaluated. Such an evaluation was undertaken by immunophenotyping paraffin-embedded lymphoid tissue biopsies with HD from 56 patients in whom multiple specimens were obtained, either simultaneously from different sites or at different times. The panel of antibodies we used included: CD3 polyclonal antiserum, DAKO-M1 (CD15), L26 (CD20), BerH2 (CD30), MT1 (CD43), DAKO-LCA (CD45RB), UCHL1 (CD45R0), LN2 (CD74), and DAKO-EMA. The phenotype of RS cells was identical in simultaneous biopsies in only 11 of 39 patients (28%) and remained constant in consecutive biopsies in only 4 of 21 patients (19%). Major differences (relative to cell lineage specific antigens) were observed in 10 of 39 patients with simultaneous biopsies and in 10 of 21 patients over time; they mainly involved expression of T-cell antigens. Minor differences (relative to any other antigen) were observed in 22 of 39 patients with simultaneous biopsies and in 15 of 21 patients over time; these mainly involved CD15 or CD74. This striking variability of the immunophenotype of RS cells in the same patient may be due to aberrant marker expression, as a result of the neoplastic state, and/or to modulation of antigenic expression in relation to the host environment. This inconsistency suggests caution when interpreting the relationship between HD and NHL by paraffin immunophenotyping alone.


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G. Z. Rassidakis, L. J. Medeiros, S. Viviani, V. Bonfante, G.-P. Nadali, T. P. Vassilakopoulos, O. Mesina, M. Herling, M. K. Angelopoulou, R. Giardini, et al.
CD20 Expression in Hodgkin and Reed-Sternberg Cells of Classical Hodgkin's Disease: Associations With Presenting Features and Clinical Outcome
J. Clin. Oncol., March 1, 2002; 20(5): 1278 - 1287.
[Abstract] [Full Text] [PDF]


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Copyright © 1992 by the American Society for Investigative Pathology.