Stomach cancer classification: Difference between revisions
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==Overview== | ==Overview== | ||
Gastric cancer can be classified according to the Padova classification system based upon the grade of [[metaplasia]], [[dysplasia]] 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]]. | [[Gastric cancer]] can be classified according to the Padova [[classification]] [[system]] based upon the grade of [[metaplasia]], [[dysplasia]] 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]]. | ||
==Classification== | ==Classification== | ||
Gastric cancer can be classified according to the Padova classification system based upon the grade of [[metaplasia]], [[dysplasia]] 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> | [[Gastric cancer]] can be classified according to the Padova [[classification]] [[system]] based upon the grade of [[metaplasia]], [[dysplasia]] 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> | ||
=== '''Padova classification''' === | === '''Padova classification''' === | ||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
|'''1. Negative for dysplasia''' | |'''1. Negative for [[dysplasia]]''' | ||
1.0 Normal | 1.0 Normal | ||
| Line 24: | Line 24: | ||
1.2.2 IM Incomplete type | 1.2.2 IM Incomplete type | ||
|- | |- | ||
|'''2. Indefinite for dysplasia''' | |'''2. Indefinite for [[dysplasia]]''' | ||
2.1 Foveolar hyperproliferation | 2.1 Foveolar hyperproliferation | ||
| Line 36: | Line 36: | ||
3.2 High-grade | 3.2 High-grade | ||
3.2.1 Including suspicious for [[carcinoma]] without invasion ( | 3.2.1 Including suspicious for [[carcinoma]] without [[invasion]] (interglandular) | ||
3.2.2 Including [[carcinoma]] without invasion (intraglandular) | 3.2.2 Including [[carcinoma]] without invasion (intraglandular) | ||
| Line 51: | Line 51: | ||
|- | |- | ||
|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 | ||
|Borderline lesions between [[benign]] and [[malignant]] | |Borderline [[lesions]] between [[benign]] and [[malignant]] | ||
|- | |- | ||
|Group V | |Group V | ||
|Lesions strongly suspected of [[carcinoma]] | |[[Lesions]] strongly suspected of [[carcinoma]] | ||
|- | |- | ||
|Group V | |Group V | ||
Revision as of 17:43, 14 January 2019
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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Overview
Gastric cancer can be classified according to the Padova classification system based upon the grade of metaplasia, dysplasia 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.
Classification
Gastric cancer can be classified according to the Padova classification system based upon the grade of metaplasia, dysplasia 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 (interglandular) 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.