Cytokeratin 18 (Dako Omnis)

Reacts with the 45 kDa protein corresponding to cytokeratin 18. The antibody labels a large number of simple epithelia, including many ductal and glandular epithelia. The antibody is a useful aid for classification of tumors of epithelial origin. In vascular tumors, the antibody may be a useful aid in the classification of epithelioid hemangioendotheliomas.