Identifies the Lewis Y blood group related antigen, which is a sensitive marker of adenocarcinoma and is not expressed or expressed only at very low levels in mesothelial cells or mesothelioma.
• Formalin-fixed, paraffin-embedded (FFPE) tissue block or cell block - OR - • 3 unstained slides for each test requested plus 1-2 additional unstained slides cut at 4µm