rosette-forming cells

ro·sette-·form·ing cells

term usually used for T lymphocytes with an affinity for sheep erythrocytes; when suspended in serum, they bind the uncoated, nonsensitized erythrocytes in a rosette formation.
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Erythrocyte rosette-forming cells around which the formation of a cluster (rosette) of cells consisting of more than 3 sheep erythrocytes were counted.
Both the spindle cells and the rosette-forming cells stained for vimentin.
Second, the neuroendocrine rosette-forming cells are not histiocytes, because they do not stain simultaneously for HAM56 and CD57 or CD68 and CD57.