BerEp4 explained

BerEp4 (also Ber-EP4) is a histologic stain mainly used to aid in the diagnosis of basal cell carcinoma (BCC).^[1] It is an antibody to EpCAM (epithelial cell adhesion molecule).^[2]

Clinical use

BerEp4 has a high sensitivity and specificity in being positive only in BCC cells.^[2] BerEp4 is normally negative in squamous epithelium and mesothelium, but otherwise normally positive most epithelial cells of the body.^[3] It can also help in distinguishing pulmonary adenocarcinoma (positive BerEp4) from mesothelioma (generally negative BerEp4).^{[3] [4]}

See also

• List of histologic stains that aid in diagnosis of cutaneous conditions

References

1. Web site: Ber-EP4. e-immunohistochemistry.info. 24 May 2017.
2. Sunjaya. Anthony Paulo. Sunjaya. Angela Felicia. Tan. Sukmawati Tansil. The Use of BEREP4 Immunohistochemistry Staining for Detection of Basal Cell Carcinoma. Journal of Skin Cancer. 2017. 2017. 1–10. 2090-2905. 10.1155/2017/2692604. 29464122. 5804366. free.
3. Web site: Test ID: BEREP - Ber-EP4 (Epithelial Cell Adhesion Molecule/EPCAM) Immunostain, Technical Component Only. Mayo Clinic Laboratories. 2019-12-16.
4. Ordóñez. Nelson G.. Value of the Ber-EP4 Antibody in Differentiating Epithelial Pleural Mesothelioma From Adenocarcinoma:The M.D. Anderson Experience and a Critical Review of the Literature. American Journal of Clinical Pathology. 109. 1. 1998. 85–89. 0002-9173. 10.1093/ajcp/109.1.85. 9426522. free.