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A cell surface protein expressed on immature and mature T cells and NK cells. Rarely, aberrantly expressed in acute myeloid leukemia blasts; approximately half of thymic B-cells are also positive.
Tissue Block: Formalin-fixed, paraffin-embedded (FFPE) tumor block 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.