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Detects the Lewis Y blood group–related antigen. Positive in most adenocarcinomas and typically absent or low in mesothelial cells and mesotheliomas.
Tissue Block: Formalin-fixed, paraffin-embedded (FFPE) tumor block preferred.
Unstained Slides: Recommended 2charged 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 but not in direct contact with specimen. Not suitable for freeze & hold option.