Stomach cancer classification: Difference between revisions
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==Classification== | ==Classification== | ||
Gastric cancer can be classified according to the Padova classification system based upon the grade of [[metaplasia]] and invasiveness of the [[disease]]. It may also be classified according to the Japanese classification system based on the type of lesions ([[benign]] or [[malignant]]) and [[atypia]]. The following tables briefly outline the major classification systems:<ref name="pmid10680883">{{cite journal| author=Rugge M, Correa P, Dixon MF, Hattori T, Leandro G, Lewin K et al.| title=Gastric dysplasia: the Padova international classification. | journal=Am J Surg Pathol | year= 2000 | volume= 24 | issue= 2 | pages= 167-76 | pmid=10680883 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=10680883 }}</ref><ref name="pmid27342689">{{cite journal| author=Japanese Gastric Cancer Association| title=Japanese gastric cancer treatment guidelines 2014 (ver. 4). | journal=Gastric Cancer | year= 2017 | volume= 20 | issue= 1 | pages= 1-19 | pmid=27342689 | doi=10.1007/s10120-016-0622-4 | pmc=5215069 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=27342689 }}</ref> | |||
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=== Japanese classification | === Japanese classification === | ||
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|Group I | |Group I | ||
|Normal [[mucosa]] and benign lesions with no [[atypia]] | |Normal [[mucosa]] and [[benign]] lesions with no [[atypia]] | ||
|- | |- | ||
|Group II | |Group II | ||
|Lesions showing [[atypia]] but diagnosed as benign (non-[[Neoplastic disease|neoplastic]]) | |Lesions showing [[atypia]] but diagnosed as [[benign]] (non-[[Neoplastic disease|neoplastic]]) | ||
|- | |- | ||
|Group III | |Group III | ||
Revision as of 15:16, 19 December 2017
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Parminder Dhingra, M.D. [2] Mohammed Abdelwahed M.D[3]
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Stomach cancer Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Stomach cancer classification On the Web |
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American Roentgen Ray Society Images of Stomach cancer classification |
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Risk calculators and risk factors for Stomach cancer classification |
Overview
Gastric cancer classifications are Padova classification that classified gastric cancer into five types according to degree of dysplasia. Japanese classification subdivided gastric cancer according to the atypia degree to five types also.
Classification
Gastric cancer can be classified according to the Padova classification system based upon the grade of metaplasia and invasiveness of the disease. It may also be classified according to the Japanese classification system based on the type of lesions (benign or malignant) and atypia. The following tables briefly outline the major classification systems:[1][2]
Padova classification
| 1. Negative for dysplasia
1.0 Normal 1.1 Reactive foveolar hyperplasia 1.2 Intestinal metaplasia (IM) 1.2.1 IM Complete type 1.2.2 IM Incomplete type |
| 2. Indefinite for dysplasia
2.1 Foveolar hyperproliferation 2.2 Hyperproliferative IM |
| 3. Non-invasive neoplasia (flat or elevated [synonym adenoma])
3.1 Low-grade 3.2 High-grade 3.2.1 Including suspicious for carcinoma without invasion (intreglandular) 3.2.2 Including carcinoma without invasion (intraglandular) |
| 4. Suspicious for invasive carcinoma |
| 5. Invasive adenocarcinoma |
Japanese classification
| Category | Definition |
|---|---|
| Group I | Normal mucosa and benign lesions with no atypia |
| Group II | Lesions showing atypia but diagnosed as benign (non-neoplastic) |
| Group III | Borderline lesions between benign and malignant |
| Group V | Lesions strongly suspected of carcinoma |
| Group V | Carcinoma |
References
- ↑ Rugge M, Correa P, Dixon MF, Hattori T, Leandro G, Lewin K; et al. (2000). "Gastric dysplasia: the Padova international classification". Am J Surg Pathol. 24 (2): 167–76. PMID 10680883.
- ↑ Japanese Gastric Cancer Association (2017). "Japanese gastric cancer treatment guidelines 2014 (ver. 4)". Gastric Cancer. 20 (1): 1–19. doi:10.1007/s10120-016-0622-4. PMC 5215069. PMID 27342689.