Cytokeratin 5/6
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Cytokeratin 5/6, abbreviated CK/5/6, is a common immunostain.
Use
- Prostatic adenocarcinoma versus high-grade prostatic intraepithelial neoplasia (HGPIN).
- CK5/6 marks the basal cells: present in HGPIN, absent in cancer.
- Urothelial cell carcinoma versus prostatic adenocarcinoma.
- Positive in UCC, negative in prostate adenocarcinoma.
Positive
- Squamous cell carcinoma.
- Benign prostate (basal cells).[1]
- Urothelial carcinoma.
- Malignant mesothelioma.[2]
Negative
See also
- ↑ Trpkov, K.; Bartczak-McKay, J.; Yilmaz, A. (Aug 2009). "Usefulness of cytokeratin 5/6 and AMACR applied as double sequential immunostains for diagnostic assessment of problematic prostate specimens.". Am J Clin Pathol 132 (2): 211-20; quiz 307. doi:10.1309/AJCPGFJP83IXZEUR. PMID 19605815.
- ↑ 2.0 2.1 Marchevsky AM (March 2008). "Application of immunohistochemistry to the diagnosis of malignant mesothelioma". Arch. Pathol. Lab. Med. 132 (3): 397-401. PMID 18318582. http://journals.allenpress.com/jrnlserv/?request=get-abstract&issn=0003-9985&volume=132&page=397.