Appendix cancer classification: Difference between revisions
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==Classification== | ==Classification== | ||
*Appendix cancer may be classified according to [[WHO]] classification into 4 groups:<ref name="WHO">Chapter 5: Tumours of the Appendix - IARC. https://www.iarc.fr/en/publications/pdfs-online/pat-gen/bb2/bb2-chap5.pdf Accessed on January 15, 2019</ref> | *[[Vermiform appendix|Appendix]] [[cancer]] may be classified according to [[WHO]] classification into 4 groups:<ref name="WHO">Chapter 5: Tumours of the Appendix - IARC. https://www.iarc.fr/en/publications/pdfs-online/pat-gen/bb2/bb2-chap5.pdf Accessed on January 15, 2019</ref> | ||
:*Epithelial tumors | :*[[Epithelial hyperplasia|Epithelial tumors]] | ||
:*Non-epithelial tumors | :*Non-epithelial tumors | ||
:*Secondary tumors | :*Secondary tumors | ||
:*Hyperplastic (metaplastic) polyps. | :*[[Metaplasticity|Hyperplastic (metaplastic) polyps]]. | ||
*The table below summarizes the different types of appendix cancer according to the WHO classification. | *The table below summarizes the different types of appendix cancer according to the [[World Health Organization|WHO classification]]. | ||
{| style="border: 5px; font-size: 90%; margin: 5px; width: 300px" align="center" | {| style="border: 5px; font-size: 90%; margin: 5px; width: 300px" align="center" | ||
! colspan="4" style="padding: 5px 5px; background: #4479BA; font-weight: bold; text-align:center;" |{{fontcolor|#FFF|'''WHO histological classification<br>Tumors of the appendix (Adapted from WHO/IARC)<ref name="WHO"> Chapter 5: Tumours of the Appendix - IARC. https://www.iarc.fr/en/publications/pdfs-online/pat-gen/bb2/bb2-chap5.pdf Accessed on January 15, 2019</ref>'''}} | ! colspan="4" style="padding: 5px 5px; background: #4479BA; font-weight: bold; text-align:center;" |{{fontcolor|#FFF|'''WHO histological classification<br>Tumors of the appendix (Adapted from WHO/IARC)<ref name="WHO"> Chapter 5: Tumours of the Appendix - IARC. https://www.iarc.fr/en/publications/pdfs-online/pat-gen/bb2/bb2-chap5.pdf Accessed on January 15, 2019</ref>'''}} | ||
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==Other classifications== | ==Other classifications== | ||
*''' | *'''Appendiceal [[mucocele]]''' classification: | ||
:*Mucosal hyperplasia | :*Mucosal [[hyperplasia]] | ||
:*Simple or retention cyst | :*Simple or [[Mucous retention cyst|retention cyst]] | ||
:*Mucinous cystadenoma | :*Mucinous cystadenoma | ||
:*Mucinous cystadenocarcinoma: worst prognosis | :*[[Mucinous cystadenocarcinoma]]: worst prognosis | ||
*'''Appendix adenocarcinoma''' has been also classified as follows: | *'''[[Vermiform appendix|Appendix]] adenocarcinoma''' has been also classified as follows: | ||
:*'''Mucinous type''' '''adenocarcinoma :''' (most common): most favorable prognosis | :*'''[[Mucinous|Mucinous type]]''' '''[[adenocarcinoma]] :''' (most common): most favorable prognosis | ||
:*'''Intestinal or colonic''' '''adenocarcinoma :'''(less common): similar to colon adenocarcinoma | :*'''[[Intestine|Intestinal]] or colonic''' '''[[adenocarcinoma]] :'''(less common): similar to colon adenocarcinoma | ||
:*'''Signet ring cell adenocarcinoma :''' (least common), poor prognosis | :*'''[[Signet ring cell carcinoma|Signet ring cell]] [[adenocarcinoma]] :''' (least common), poor prognosis | ||
==References== | ==References== | ||
{{Reflist|2}} | {{Reflist|2}} | ||
<references /> | <references /> | ||
Revision as of 16:45, 20 February 2019
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Appendix cancer Microchapters |
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Diagnosis |
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Treatment |
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Appendix cancer classification On the Web |
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American Roentgen Ray Society Images of Appendix cancer classification |
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Risk calculators and risk factors for Appendix cancer classification |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Soroush Seifirad, M.D.[2]
Overview
- Appendix cancer is classified according to the histological findings. According to WHO classification, there are four major groups of appendix cancer including epithelial tumors, non-epithelial tumors, secondary tumors, and hyperplastic (metaplastic) polyps. Carcinoid (well differentiated endocrine neoplasm), and adenocarcinoma are two major subtypes of epithelial tumors, making the majority of appendix cancer cases.
Classification
- Epithelial tumors
- Non-epithelial tumors
- Secondary tumors
- Hyperplastic (metaplastic) polyps.
- The table below summarizes the different types of appendix cancer according to the WHO classification.
| WHO histological classification Tumors of the appendix (Adapted from WHO/IARC)[1] | |||
|---|---|---|---|
| Epithelial tumors | Non-epithelial tumors | Secondary tumors | Hyperplastic polyp |
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Other classifications
- Appendiceal mucocele classification:
- Mucosal hyperplasia
- Simple or retention cyst
- Mucinous cystadenoma
- Mucinous cystadenocarcinoma: worst prognosis
- Appendix adenocarcinoma has been also classified as follows:
- Mucinous type adenocarcinoma : (most common): most favorable prognosis
- Intestinal or colonic adenocarcinoma :(less common): similar to colon adenocarcinoma
- Signet ring cell adenocarcinoma : (least common), poor prognosis
References
- ↑ 1.0 1.1 Chapter 5: Tumours of the Appendix - IARC. https://www.iarc.fr/en/publications/pdfs-online/pat-gen/bb2/bb2-chap5.pdf Accessed on January 15, 2019