RT Journal Article SR Electronic T1 Performance of gastrointestinal pathologists within a national digital review panel for Barrett’s oesophagus in the Netherlands: results of 80 prospective biopsy reviews JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 48 OP 52 DO 10.1136/jclinpath-2020-206511 VO 74 IS 1 A1 Klaver, Esther A1 van der Wel, Myrtle A1 Duits, Lucas A1 Pouw, Roos A1 Seldenrijk, Kees A1 Offerhaus, Johan A1 Visser, Mike A1 ten Kate, Fiebo A1 Biermann, Katharina A1 Brosens, Lodewijk A1 Doukas, Michael A1 Huysentruyt, Clément A1 Karrenbeld, Arend A1 Kats-Ugurlu, Gursah A1 van der Laan, Jaap A1 van Lijnschoten, Ineke A1 Moll, Freek A1 Ooms, Ariadne A1 Tijssen, Jan A1 Meijer, Sybren A1 Bergman, Jacques YR 2021 UL http://jcp.bmj.com/content/74/1/48.abstract AB Aims The histopathological diagnosis of low-grade dysplasia (LGD) in Barrett’s oesophagus (BO) is associated with poor interobserver agreement and guidelines dictate expert review. To facilitate nationwide expert review in the Netherlands, a web-based digital review panel has been set up, which currently consists of eight ‘core’ pathologists. The aim of this study was to evaluate if other pathologists from the Dutch BO expert centres qualify for the expert panel by assessing their performance in 80 consecutive LGD reviews submitted to the panel.Methods Pathologists independently assessed digital slides in two phases. Both phases consisted of 40 cases, with a group discussion after phase I. For all cases, a previous consensus diagnosis made by five core pathologists was available, which was used as reference. The following criteria were used: (1) percentage of ‘indefinite for dysplasia’ diagnoses, (2) percentage agreement with consensus diagnosis and (3) proportion of cases with a consensus diagnosis of dysplasia underdiagnosed as non-dysplastic. Benchmarks were based on scores of the core pathologists.Results After phase I, 1/7 pathologists met the benchmark score for all quality criteria, yet three pathologists only marginally failed the agreement with consensus diagnosis (score 68.3%, benchmark 69%). After a group discussion and phase II, 5/6 remaining aspirant panel members qualified with all scores within the benchmark range.Conclusions The Dutch BO review panel now consists of 14 pathologists, who—after structured assessments and group discussions—can be considered homogeneous in their review of biopsies with LGD.