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Identifies epithelial glycoprotein 2, a cell surface protein expressed on epithelial cells but not mesothelial cells. MOC31 is useful for distinguishing adenocarcinoma (positive) from mesothelioma (negative) and does not stain liver or hepatocellular carcinoma, aiding in differentiating liver metastases from primary hepatic tumors.
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.