Datasets

Carcinomas of the Stomach

Scope

The dataset has been developed for the pathology reporting of gastrectomy for gastric carcinomas. A separate ICCR dataset is available for endoscopic resections of the stomach.

Carcinomas involving the oesophagogastric junction (OGJ) with their epicentre >20 millimetres into the proximal stomach and cardia cancers that do not involve the OGJ are included. These criteria are set by the Union for International Cancer Control (UICC) 9th edition/American Joint Committee on Cancer (AJCC) 8th edition Classifications and have been adopted by the World Health Organization (WHO) to define the diagnosis ‘gastric cancer’. For all other tumours involving the OGJ, refer to the ICCR dataset for carcinomas of the oesophagus.5

Neuroendocrine carcinomas (NECs) and mixed neuroendocrine-non-neuroendocrine neoplasms (MiNENs) (with the exception of mixed adenoma and neuroendocrine tumours (NETs)) are included in this dataset.

Neuroendocrine tumours (NETs), non-epithelial malignancies and secondary tumours are excluded from this dataset.

Publication History

3rd edition – December 2025

Updated to Union for International Cancer Control TNM9 Cancer Staging, including errata published October 2025. Replaced Figures 2, 4, 5 and 6.

  • To reference this dataset please use the following citation: Shi C, Badgwell B, Gibson MK, Grabsch HI, Hong S, Kumarasinghe P, Lam A, Lauwers G, O’Donovan M, Tang L, Ushiku T, van der Post RS, Vieth M, Nagtegaal ID (2025). Carcinoma of the Stomach Histopathology Reporting Guide. 3rd edition. International Collaboration on Cancer Reporting; Sydney, Australia. ISBN: 978-1-922324-64-1

Minor update to the 2nd edition – Version 2.1 December 2021. Revision to ‘Response to neoadjuvant therapy – Table 5’.

2nd edition – December 2021

Minor revisions to commentary.

  • To reference this dataset please use the following citation: Shi C, Badgwell B, Gibson MK, Grabsch HI, Hong S, Kumarasinghe P, Lam A, Lauwers G, O’Donovan M, Tang L, Ushiku T, van der Post RS, Vieth M, Nagtegaal ID (2021). Carcinoma of the Stomach Histopathology Reporting Guide. 2nd edition. International Collaboration on Cancer Reporting; Sydney, Australia. ISBN: 978-1-922324-28-3.

1st edition – November 2020

  • To reference this dataset please use the following citation: Shi C, Badgwell B, Gibson MK, Grabsch HI, Hong S, Kumarasinghe P, Lam A, Lauwers G, O’Donovan M, Tang L, Ushiku T, van der Post RS, Vieth M, Nagtegaal ID (2020). Carcinoma of the Stomach Histopathology Reporting Guide. 1st edition. International Collaboration on Cancer Reporting; Sydney, Australia. ISBN: 978-1-922324-04-7.
  • Read more on the Carcinoma of the stomach dataset from the journal article written by the dataset authors: Data Set for Reporting Carcinoma of the Stomach in Gastrectomy: Recommendations from the International Collaboration on Cancer Reporting. Shi C, Badgwell BD, Grabsch HI, Gibson MK, Hong SM, Kumarasinghe P, Lam AK, Lauwers G, O’Donovan M, van der Post RS, Tang L, Ushiku T, Vieth M, Selinger CI, Webster F, Nagtegaal ID. Arch Pathol Lab Med. 2022 Sep 1;146(9):1072-1083. doi: 10.5858/arpa.2021-0225-OA.

Expert Committee

All editions of the dataset for Carcinoma of the stomach were developed by the following international team:

  • Chair – Chanjuan Shi, USA
  • Series Champion and ICCR representative – Iris Nagtegaal, The Netherlands

Domain experts:

  • Brian Badgwell, USA
  • Michael Gibson, USA
  • Heike Grabsch, The Netherlands/UK
  • Seung-mo Hong, Korea
  • Priyanthi Kumarasinghe, Australia
  • Alfred Lam, Australia
  • Gregory Lauwers, USA
  • Maria O’Donovan, UK
  • Laura Tang, USA
  • Tetsuo Ushiku, Japan
  • Chella van der Post, The Netherlands
  • Michael Vieth, Germany
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