Author: Kara Hamilton, M.S., Nat Pernick, M.D. (see Authors page)

Revised: 29 October 2015, last major update July 2013

Copyright: (c)2003-2015,, Inc.

PubMed Search: BG8
  • Also called Anti-Lewis-Y or Lewis Y antigen, BG-8
  • Mechanism: detects the Lewis Y antigen, type 2 chain
  • Note: Methylobacter albus BG8 is a gram negative bacteria using methane as its carbon source
  • Interpretation: cytoplasmic staining, diffuse and intense
  • Uses by Pathologists
    Positive Staining - Disease
    Negative Staining
    • Mesothelioma (sometimes focal or weak staining in epithelium)