Consensus on the pathological definition and classification of poorly cohesive gastric carcinoma

• Type: Article in International Scientific Journal
• Date: 2019

Authors

Mariette, C (Author) Other; Carneiro F (Author) FMUP; Grabsch, HI (Author) Other; van der Post, RS (Author) Other; Allum, W (Author) Other; de Manzoni, G (Author) Other; Luca, BG (Author) Other; Maria, B (Author) Other; Jean Francois, F (Author) Other; Uberto, F (Author) Other; Arnulf, H (Author) Other; Mar, I (Author) Other; Daniele, M (Author) Other; Stephan, M (Author) Other; Paolo, M (Author) Other; Manuel, P (Author) Other; Giullaume, P (Author) Other; Daniel, R (Author) Other; Florence, R (Author) Other; Franco, R (Author) Other; Luca, S (Author) Other; Aldo, S (Author) Other; Paul, S (Author) Other; Anna, T (Author) Other; Michael, V (Author) Other; Andrew, W (Author) Other; Giuseppe, Z (Author) Other

Journal

Title: Gastric Cancer

Vol. 22

Pages: 1-9

ISSN: 1436-3291

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 64 Citations

Scopus - 66 Citations

Other information

Authenticus ID: P-00P-K5C

DOI: 10.1007/s10120-018-0868-0

Abstract (EN): Background and aimsClinicopathological characteristics of gastric cancer (GC) are changing, especially in the West with a decreasing incidence of distal, intestinal-type tumours and the corresponding increasing proportion of tumours with Lauren diffuse or WHO poorly cohesive (PC) including signet ring cell (SRC) histology. To accurately assess the behaviour and the prognosis of these GC subtypes, the standardization of pathological definitions is needed.MethodsA multidisciplinary expert team belonging to the European Chapter of International Gastric Cancer Association (IGCA) identified 11 topics on pathological classifications used for PC and SRC GC. The topics were debated during a dedicated Workshop held in Verona in March 2017. Then, through a Delphi method, consensus statements for each topic were elaborated.ResultsA consensus was reached on the need to classify gastric carcinoma according to the most recent edition of the WHO classification which is currently WHO 2010. Moreover, to standardize the definition of SRC carcinomas, the proposal that only WHO PC carcinomas with more than 90% poorly cohesive cells having signet ring cell morphology have to be classified as SRC carcinomas was made. All other PC non-SRC types have to be further subdivided into PC carcinomas with SRC component (<90% but >10% SRCs) and PC carcinomas not otherwise specified (<10% SRCs).ConclusionThe reported statements clarify some debated topics on pathological classifications used for PC and SRC GC. As such, this consensus classification would allow the generation of evidence on biological and prognostic differences between these GC subtypes.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9