References
                                            
                                                    
                                                        1.	Naini BV, Souza RF, Odze RD. Barrett's Esophagus: a comprehensive and contemporary review for pathologists. Am J Surg Pathol 2016, 40:e45-66
                                                     
                                                    
                                                
                                                    
                                                        2.	Shaheen NJ, Richter JE. Barrett’s oesophagus. Lancet 2009, 373:850-861
                                                     
                                                    
                                                
                                                    
                                                        3.	Fiocca R, Mastracci L, Milione M, et al. Microscopic esophagitis and Barrett's esophagus: the histology report. Dig Liver Dis 2011, 43(Suppl 4):S319-330
                                                     
                                                    
                                                
                                                    
                                                        4.	Pera M. Trends in incidence and prevalence of specialized intestinal metaplasia, Barrett’s esophagus, and adenocarcinoma of the gastroesophageal junction. World J Surg 2003, 27:999-1108
                                                     
                                                    
                                                
                                                    
                                                        5.	Vakil N, van Zanten SV, Kahrilas P, et al. The Montreal definition and classification of gastroesophageal reflux disease: a  global evidence-based consensus. Am J Gastroenterol 2006, 101:1900-1920
                                                     
                                                    
                                                
                                                    
                                                        6.	Cohen J, Safdi MA, Deal SE, et al. Quality indicators for esophagogastroduodenoscopy. Am J Gastroenterol 2006, 101:886-891
                                                     
                                                    
                                                
                                                    
                                                        7.	Sharma P, Dent J, Armstrong D, et al. The development and validation of  an endoscopic grading system for Barrett's esophagus: the Prague C & M criteria. Gastroenterology 2006, 131:1392-1399
                                                     
                                                    
                                                
                                                    
                                                        8.	Gopal DV, Lieberman DA, Magaret N, et al. Risk factors for dysplasia in patients with Barrett's esophagus (BE): results from a multicenter consortium. Dig Dis Sci 2003, 48:1537-1541
                                                    
                                                    
                                                
                                                    
                                                        9.	Menezes A, Tierney A, Yang YX, et al. Adherence to the 2011 American Gastroenterological Association medical position statement for the diagnosis and management of Barrett's esophagus. Dis Esophagus 2015, 28:538-546
                                                     
                                                    
                                                
                                                    
                                                        10.	Dunn SJ, Neilson LJ, Hassan C, et al. ESGE Survey: worldwide practice patterns amongst gastroenterologists regarding the endoscopic management of Barrett's esophagus. Endosc Int Open 2016, 4:E36-41
                                                     
                                                    
                                                
                                                    
                                                        11.	Naini BV, Chak A, Ali MA, et al. Barrett's oesophagus diagnostic criteria: endoscopy and histology. Best Pract Res Clin Gastroenterol 2015, 29:77-96
                                                     
                                                    
                                                
                                                    
                                                        12.	Spechler SJ, Sharma P, Souza RF, et al. American gastroenterological association medical position statement on the management of Barrett's esophagus. Gastroenterology 2011,140:1084-1091
                                                    
                                                    
                                                
                                                    
                                                        13.	Riddell RH, Odze RD. Definition of Barrett's esophagus: time for a rethink. Is intestinal metaplasia dead? Am J Gastroenterol 2009, 104:2588-2594
                                                     
                                                    
                                                
                                                    
                                                        14.	Villanacci V, Bellone G, Battaglia E, et al. Ski/SnoN expression in the sequence metaplasia-dysplasia-adenocarcinoma of Barrett's esophagus. Hum Pathol 2008, 39:403-409
                                                     
                                                    
                                                
                                                    
                                                        15.	Rossi E, Grisanti S, Villanacci V, et al. HER-2 overexpression/amplification in Barrett's oesophagus predicts early transition from dysplasia to adenocarcinoma: a clinico-pathologic study. J Cell Mol Med 2009, 13:3826-3833
                                                     
                                                    
                                                
                                                    
                                                        16.	Fitzgerald RC, di Pietro M, Ragunath K, et al. British Society of Gastroenterology guidelines on the diagnosis and management of Barrett's oesophagus. Gut 2014, 63:7-42
                                                     
                                                    
                                                
                                                    
                                                        17.	Ogiya K, Kawano T, Ito E, et al. Lower esophageal palisade vessels and the definition of Barrett's esophagus. Dis Esophagus 2008, 21:645-649
                                                     
                                                    
                                                
                                                    
                                                        18.	Skacel M, Petras RE, Gramlich TL, et al. The diagnosis of low grade dysplasia in Barrett's esophagus and its implication for disease progression. Am J Gastroenterol 2000, 95:3383-3387
                                                     
                                                    
                                                
                                                    
                                                        19.	Montgomery E, Bronner MP, Goldblum JR, et al. Reproducibility of the diagnosis of dysplasia in Barrett esophagus: a reaffirmation. Hum Pathol 2001, 32:368-378
                                                     
                                                    
                                                
                                                    
                                                        20.	Kaye PV, Haider SA, Ilyas M, et al. Barrett's dysplasia and the Vienna classification: reproducibility, prediction of progression and impact of consensus reporting and  p53 immunohistochemistry. Histopathology 2009, 54:699-712
                                                     
                                                    
                                                
                                                    
                                                        21.	Coco DP, Goldblum JR, Hornick JL, et al. Interobserver variability in the diagnosis of crypt dysplasia in Barrett esophagus. Am J Surg Pathol 2011, 35:45-54
                                                     
                                                    
                                                
                                                    
                                                        22.	Bennett C, Vakil N, Bergman J, et al. Consensus statements for management of Barrett's dysplasia and early-stage esophageal adenocarcinoma, based on a Delphi process. Gastroenterology 2012, 143:336-346
                                                     
                                                    
                                                
                                                    
                                                        23.	Villanacci V, Rossi E, Zambelli C, et al. COX-2, CDX2, and CDC2 immunohistochemical assessment for dysplasia-carcinoma progression in Barrett's esophagus. Dig Liver Dis 2007, 39:305-311
                                                     
                                                    
                                                
                                                    
                                                        24.	Cohen J. A coefficient of agreement for nominal scales. Education Psychol Measur 1960, 20:37-46
                                                     
                                                    
                                                
                                                    
                                                        25.	Fleiss JL, Levin B, Paik MC. Statistical methods for rates and proportions, 3rd ed. John Wiley & Sons, Hoboken, 2003
                                                    
                                                    
                                                
                                                    
                                                        26.	Duits LC, Phoa KN, Curvers WL, et al. Barrett's oesophagus patients with low-grade dysplasia can be accurately risk-stratified after histological review by an expert pathology panel. Gut 2015, 64:700-706
                                                     
                                                    
                                                
                                                    
                                                        27.	Sangle NA, Taylor SL, Emond MJ, et al. Overdiagnosis of high-grade dysplasia in Barrett's esophagus: a multicenter, international study. Mod Pathol 2015, 28:758-765
                                                     
                                                    
                                                
                                                    
                                                        28.	Yantiss RK. Diagnostic challenges in the pathologic evaluation of Barrett esophagus. Arch Pathol Lab Med 2010, 134:1589-1600
                                                    
                                                    
                                                
                                                    
                                                        29.	Odze RD. Barrett esophagus: histology and pathology for the clinician. Nat Rev Gastroenterol Hepatol 2009, 6:478-490
                                                     
                                                    
                                                
                                                    
                                                        30.	Corley DA, Kubo A, DeBoer J, et al. Diagnosing Barrett’s esophagus: reliability of clinical and pathologic diagnoses. Gastrointest Endosc 2009, 69:1004-1010
                                                     
                                                    
                                                
                                                    
                                                        31.	Pech O, Vieth M, Schmitz D, et al. Conclusions from the histological diagnosis of low-grade intraepithelial neoplasia in Barrett's oesophagus. Scand J Gastroenterol 2007, 42:682-688
                                                     
                                                    
                                                
                                                    
                                                        32.	Curvers WL, ten Kate FJ, Krishnadath KK, et al. Low-grade dysplasia in Barrett's esophagus: overdiagnosed and underestimated. Am J Gastroenterol 2010, 105:1523-1530
                                                     
                                                    
                                                
                                                    
                                                        33.	Mastracci L, Piol N, Molinaro L, et al. Interobserver reproducibility in pathologist interpretation of columnar-lined esophagus. Virchows Arch 2016, 468:159-167
                                                    
                                                    
                                                
                                                    
                                                        34.	Villanacci V, Bassotti G, Salemme M, et al. Influence of genetics on tumoral pathologies: the example of the adenocarcinoma arising in Barrett's esophagus. Rev Esp Enferm Dig 2012, 104:592-602
                                                     
                                                    
                                                
                                                    
                                                        35.	Salemme M, Villanacci V, Cengia G, et al. Intestinal metaplasia in Barrett's oesophagus: An essential factor to predict the risk of dysplasia and cancer development. Dig Liver Dis 2016, 48:144-147
                                                     
                                                    
                                                
                                                    
                                                        36.	Rubenstein JH. Surveillance in Barrett's esophagus: utility and current recommendations. Gastroenterol Clin North Am 2015, 44:285-297
                                                     
                                                    
                                                
                                                    
                                                        37.	Singh R, Yeap SP, Cheong KL. Detection and characterization of early malignancy in the esophagus: what is the best management algorithm? Best Pract Res Clin Gastroenterol 2015, 29:533-544
                                                     
                                                    
                                                
                                                    
                                                        38.	Butt J, Kandel G. Barrett esophagus: when to endoscope. Clin Endosc 2014, 47:40-46
                                                     
                                                    
                                                
                                                    
                                                        39.	Sharma P, Hawes RH, Bansal A, et al. Standard endoscopy with random biopsies versus narrow band imaging targeted biopsies in Barrett's oesophagus: a prospective, international, randomised controlled trial.  Gut 2013, 62:15-21
                                                     
                                                    
                                                
                                                    
                                                        40.	Verna C, Feyles E, Lorenzi L, et al. I-SCAN targeted versus random biopsies in Barrett's oesophagus. Dig Liver Dis 2014, 46:131-134
                                                     
                                                    
                                                
                                                    
                                                        41.	Bertani H, Frazzoni M, Dabizzi E, et al. Improved detection of incident dysplasia by probe-based confocal laser endomicroscopy in a Barrett's esophagus surveillance program. Dig Dis Sci 2013, 58:188-193
                                                     
                                                    
                                                
                                                    
                                                        42.	Xiong YQ, Ma SJ, Zhou JH, et al. A meta-analysis of confocal laser endomicroscopy for the detection of neoplasia in patients with Barrett's esophagus. J Gastroenterol Hepatol 2016, 31:1102-1110