Rearrangement of the beta T-cell receptor gene in a monocytoid B-cell lymphoma
Xerri, L.; Horschowski, N.; Lejeune, C.; Carcassonne, Y.; Hassoun, J.
Archives of Pathology and Laboratory Medicine 114(1): 109-111
1990
ISSN/ISBN: 0003-9985 PMID: 2153018 Document Number: 348165
We describe an unusual case of monocytoid lymphoma displaying a rearrangement of the T-cell receptor beta-chain gene associated with a rearrangement of the immunoglobulin heavy-chain gene, and of the lambda light-chain gene. This lymphoma was morphologically similar to previous cases in the literature, and was clinically of low grade. The lymphoma expressed the lambda light chain, HLA-DR, CD21, and CD22. Though the B-cell lineage of this lymphoma seems very likely, the genotypic profile raises a cautionary note regarding the supposed high stage of differentiation of monocytoid lymphomas.