Low grade dysplasia can be a false positive whenever there is inflammation present. I had LGD once during a flare scope, and then for years have had annual or semi annual scopes with 40-50 biopsies each time, all negative for dysplasia. High grade is another matter.
See for example:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1773763/
Post Edited (Probiotic) : 5/14/2012 9:44:48 AM (GMT-6)