Depending on the patient’s degree of sedation and the examiner’s level of experience, carrying out a precise examination of the Z-line may not be very
metaplasia
metaplasia
When the Z-line is not completely normal
Endoscopic examination of a normal Z-line
Visualization of the Z-line without enhancement and with iScan, obstructed by esophageal motility.
Low-grade dysplasia in Barrett’s esophagus — a second opinion is important, but then treatment is needed
Low-grade dysplasia (low-grade intraepithelial neoplasia, LGIN) is difficult to distinguish from inflammation histopathologically. The interobserver variance rates usually show kappa values below 0.4, representing a