Sung H, Ferlay J, Siegel RL, et al. Global Cancer Statistics 2020: GLOBOCAN Estimates of Incidence and Mortality Worldwide for 36 Cancers in 185 Countries. CA Cancer J Clin. 2021;71:209–49.

Article  PubMed  Google Scholar 

Yamashina T, Ishihara R, Nagai K, et al. Long-term outcome and metastatic risk after endoscopic resection of superficial esophageal squamous cell carcinoma. Am J Gastroenterol. 2013;108:544–51.

Article  PubMed  Google Scholar 

Berger A, Rahmi G, Perrod G, et al. Long-term follow-up after endoscopic resection for superficial esophageal squamous cell carcinoma: a multicenter Western study. Endoscopy. 2019;51:298–306.

Article  PubMed  Google Scholar 

Ono S, Fujishiro M, Niimi K, et al. Long-term outcomes of endoscopic submucosal dissection for superficial esophageal squamous cell neoplasms. Gastrointest Endosc. 2009;70:860–6.

Article  PubMed  Google Scholar 

Tsou YK, Lee CH, Le PH, Chen BH. Adjuvant therapy for pT1a-m3/pT1b esophageal squamous cell carcinoma after endoscopic resection: Esophagectomy or chemoradiotherapy? A critical review. Crit Rev Oncol Hematol. 2020;147:102883.

Article  PubMed  Google Scholar 

Minashi K, Nihei K, Mizusawa J, et al. Efficacy of Endoscopic Resection and Selective Chemoradiotherapy for Stage I Esophageal Squamous Cell Carcinoma. Gastroenterology. 2019;157(382–90):e3.

Google Scholar 

Nihei K, Minashi K, Yano T, et al. Final Analysis of Diagnostic Endoscopic Resection Followed by Selective Chemoradiotherapy for Stage I Esophageal Cancer: JCOG0508. Gastroenterology. 2023;164(296–9):e2.

Google Scholar 

Kato K, Ito Y, Nozaki I, et al. Parallel-Group Controlled Trial of Surgery Versus Chemoradiotherapy in Patients With Stage I Esophageal Squamous Cell Carcinoma. Gastroenterology. 2021;161(1878–86):e2.

Google Scholar 

Ishihara R, Arima M, Iizuka T, et al. Endoscopic submucosal dissection/endoscopic mucosal resection guidelines for esophageal cancer. Dig Endosc. 2020;32:452–93.

Article  PubMed  Google Scholar 

Kitagawa Y, Ishihara R, Ishikawa H, et al. Esophageal cancer practice guidelines 2022 edited by the Japan esophageal society: part 1. Esophagus. 2023;20:343–72.

Article  PubMed  PubMed Central  Google Scholar 

Kitagawa Y, Ishihara R, Ishikawa H, et al. Esophageal cancer practice guidelines 2022 edited by the Japan Esophageal Society: part 2. Esophagus. 2023;20:373–89.

Article  PubMed  PubMed Central  Google Scholar 

Tanaka T, Ueno M, Iizuka T, et al. Comparison of long-term outcomes between esophagectomy and chemoradiotherapy after endoscopic resection of submucosal esophageal squamous cell carcinoma. Dis Esophagus. 2019. https://doi.org/10.1093/dote/doz023.

Article  PubMed  Google Scholar 

Zhou Y, Du J, Li H, et al. Clinicopathologic analysis of lymph node status in superficial esophageal squamous carcinoma. World J Surg Oncol. 2016;14:259.

Article  PubMed  PubMed Central  Google Scholar 

Li B, Chen H, Xiang J, et al. Prevalence of lymph node metastases in superficial esophageal squamous cell carcinoma. J Thorac Cardiovasc Surg. 2013;146:1198–203.

Article  PubMed  Google Scholar 

Gockel I, Domeyer M, Sgourakis GG, et al. Prediction model of lymph node metastasis in superficial esophageal adenocarcinoma and squamous cell cancer including D2–40 immunostaining. J Surg Oncol. 2009;100:191–8.

Article  CAS  PubMed  Google Scholar 

Eguchi T, Nakanishi Y, Shimoda T, et al. Histopathological criteria for additional treatment after endoscopic mucosal resection for esophageal cancer: analysis of 464 surgically resected cases. Mod Pathol. 2006;19:475–80.

Article  PubMed  Google Scholar 

Shimada H, Nabeya Y, Matsubara H, et al. Prediction of lymph node status in patients with superficial esophageal carcinoma: analysis of 160 surgically resected cancers. Am J Surg. 2006;191:250–4.

Article  PubMed  Google Scholar 

Emi M, Hihara J, Hamai Y, et al. Clinicopathologic Features of Submucosal Esophageal Squamous Cell Carcinoma. Ann Thorac Surg. 2017;104:1858–64.

Article  PubMed  Google Scholar 

Kadota T, Yano T, Fujita T, et al. Submucosal Invasive Depth Predicts Lymph Node Metastasis and Poor Prognosis in Submucosal Invasive Esophageal Squamous Cell Carcinoma. Am J Clin Pathol. 2017;148:416–26.

Article  CAS  PubMed  Google Scholar 

Shen W, Shen Y, Tan L, et al. A nomogram for predicting lymph node metastasis in surgically resected T1 esophageal squamous cell carcinoma. J Thorac Dis. 2018;10:4178–85.

Article  PubMed  PubMed Central  Google Scholar 

Min BH, Yang JW, Min YW, et al. Nomogram for prediction of lymph node metastasis in patients with superficial esophageal squamous cell carcinoma. J Gastroenterol Hepatol. 2020;35:1009–15.

Article  PubMed  Google Scholar 

Duan X, Shang X, Yue J, et al. A nomogram to predict lymph node metastasis risk for early esophageal squamous cell carcinoma. BMC Cancer. 2021;21:431.

Article  PubMed  PubMed Central  Google Scholar 

Ruan R, Chen S, Tao Y, et al. Retrospective analysis of predictive factors for lymph node metastasis in superficial esophageal squamous cell carcinoma. Sci Rep. 2021;11:16544.

Article  CAS  PubMed  PubMed Central  Google Scholar 

Hatta W, Koike T, Takahashi S, et al. Risk of metastatic recurrence after endoscopic resection for esophageal squamous cell carcinoma invading into the muscularis mucosa or submucosa: a multicenter retrospective study. J Gastroenterol. 2021;56:620–32.

Article  PubMed  Google Scholar 

Katada C, Yokoyama T, Hirasawa D, et al. Curative Management After Endoscopic Resection for Esophageal Squamous Cell Carcinoma Invading Muscularis Mucosa or Shallow Submucosal Layer-Multicenter Real-World Survey in Japan. Am J Gastroenterol. 2023;118:1175–83.

Article  PubMed  Google Scholar 

Japan Esophageal S. Japanese Classification of Esophageal Cancer, 11th Edition: part II and III. Esophagus. 2017;14:37–65.

Article  Google Scholar 

Japan Esophageal S. Japanese Classification of Esophageal Cancer, 11th Edition: part I. Esophagus. 2017;14:1–36.

Article  Google Scholar 

Mine S, Tanaka K, Kawachi H, et al. Japanese Classification of Esophageal Cancer, 12th Edition: Part I. Esophagus. 2024;21:179.

Article  PubMed  PubMed Central  Google Scholar 

Doki Y, Tanaka K, Kawachi H, et al. Japanese Classification of Esophageal Cancer 12th Edition Part II. Esophagus. 2024;21:216.

Article  PubMed  PubMed Central  Google Scholar 

Rice TW, Patil DT, Blackstone EH. 8th edition AJCC/UICC staging of cancers of the esophagus and esophagogastric junction: application to clinical practice. Ann Cardiothorac Surg. 2017;6:119–30.

Article  PubMed  PubMed Central  Google Scholar 

Egashira H, Yanagisawa A, Kato Y. Predictive factors for lymph node metastasis in esophageal squamous cell carcinomas contacting or penetrating the muscularis mucosae: the utility of droplet infiltration. Esophagus. 2006;3:47–52.

Article  Google Scholar 

Fujii S, Yamazaki M, Muto M, Ochiai A. Microvascular irregularities are associated with composition of squamous epithelial lesions and correlate with subepithelial invasion of superficial-type pharyngeal squamous cell carcinoma. Histopathology. 2010;56:510–22.

Article  PubMed  Google Scholar 

Harrell FE Jr, Lee KL, Mark DB. Multivariable prognostic models: issues in developing models, evaluating assumptions and adequacy, and measuring and reducing errors. Stat Med. 1996;15:361–87.

Article  PubMed  Google Scholar 

Miura A, Momma K, Yoshida M. Endoscopic resection for T1a-MM and T1b-SM1 squamous cell carcinoma of the esophagus. Clin J Gastroenterol. 2009;2:252–6.

Article  PubMed  Google Scholar 

Jiang KY, Huang H, Chen WY, et al. Risk factors for lymph node metastasis in T1 esophageal squamous cell carcinoma: A systematic review and meta-analysis. World J Gastroenterol. 2021;27:737–50.

Article  PubMed  PubMed Central  Google Scholar 

Xu W, Liu XB, Li SB, et al. Prediction of lymph node metastasis in superficial esophageal squamous cell carcinoma in Asia: a systematic revi