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A multimeric cell surface protein associated with the T-cell receptor. Expressed in thymocytes, peripheral T cells, NK cells, and cerebellar Purkinje cells. Aberrantly decreased in some T-cell neoplasms; stains most T-cell lymphomas and rarely B-cell lymphomas.
Tissue Block: Formalin-fixed, paraffin-embedded (FFPE) tumorblock preferred.
Unstained Slides: Recommended 2 charged slides per stain requested (minimum of 1 slide per stain),baked or unbaked.
Fixation: Tissue must be fixed in 10% neutral buffered formalin for 6–72 hours.
Use cold pack for transport. Make sure cold pack is not in direct contact with specimen.