Lugol chromoendoscopy as a diagnostic tool in so-called endoscopy-negative GERD

Visible unstained streaks by Lugol chromoendoscopy seem to be indicative of mucosal injury, which was not detectable by conventional endoscopy. Lugol chromoendoscopy is simple and could be useful for the diagnosis of ENRD. This method could be appealing for the endoscopist as it is easy, safe, and can be performed at the same endoscopic session.