Appendix cancer epidemiology and demographics: Difference between revisions
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* Carcinoid tumors comprise 50-77% of appendiceal malignancies. | * Carcinoid tumors comprise 50-77% of appendiceal malignancies. | ||
===Incidence=== | ===Incidence=== | ||
*The incidence of carcinoid tumor of appendix is approximately 0.075 per 100,000 individuals worldwide. | *The incidence of carcinoid tumor of appendix is approximately 0.075 per 100,000 individuals worldwide.<ref name="pmid9024720">{{cite journal| author=Modlin IM, Sandor A| title=An analysis of 8305 cases of carcinoid tumors. | journal=Cancer | year= 1997 | volume= 79 | issue= 4 | pages= 813-29 | pmid=9024720 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9024720 }} </ref> | ||
*The incidence of adenocarcinoma of the appendix is approximately 0.2 per 100,000 individuals worldwide. | *The incidence of adenocarcinoma of the appendix is approximately 0.2 per 100,000 individuals worldwide.<ref name="pmid7795991">{{cite journal| author=Deans GT, Spence RA| title=Neoplastic lesions of the appendix. | journal=Br J Surg | year= 1995 | volume= 82 | issue= 3 | pages= 299-306 | pmid=7795991 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=7795991 }} </ref> | ||
===Prevalence=== | ===Prevalence=== | ||
| Line 28: | Line 28: | ||
*The incidence of apendix cancer increases with age; meanwhile, patients with carcinoid tumors are generally younger than their adenocarcinoma counterparts. | *The incidence of apendix cancer increases with age; meanwhile, patients with carcinoid tumors are generally younger than their adenocarcinoma counterparts. | ||
* The median age at diagnosis is 65 years for adenocarcinoma, compared to t 32-43 years (range, 6 to 80 years) for carcinoid tumors. | * The median age at diagnosis is 65 years for adenocarcinoma, compared to t 32-43 years (range, 6 to 80 years) for carcinoid tumors. | ||
** The patients with Tubular carcinoids are significantly younger than the patients with goblet cell carcinoids. | ** The patients with Tubular carcinoids are significantly younger than the patients with goblet cell carcinoids.<ref name="pmid2163192">{{cite journal| author=Burke AP, Sobin LH, Federspiel BH, Shekitka KM, Helwig EB| title=Goblet cell carcinoids and related tumors of the vermiform appendix. | journal=Am J Clin Pathol | year= 1990 | volume= 94 | issue= 1 | pages= 27-35 | pmid=2163192 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=2163192 }} </ref> | ||
===Race=== | ===Race=== | ||
Revision as of 14:44, 16 January 2019
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Soroush Seifirad, M.D.[2]
Overview
Epidemiology and Demographics
- Epidemiology of appendix cancer should be discussed with respect to the major histological characteristics of tumors.
- Prevalence, risk factors, age distribution as well as prognosis are different in two major types of apendiceal cancers.
- According to the SEER database, adenocarcinoma accounted for 58% of appendiceal tumors.
- Carcinoid tumors comprise 50-77% of appendiceal malignancies.
Incidence
- The incidence of carcinoid tumor of appendix is approximately 0.075 per 100,000 individuals worldwide.[1]
- The incidence of adenocarcinoma of the appendix is approximately 0.2 per 100,000 individuals worldwide.[2]
Prevalence
- Appendiceal neoplasms account for approximately 0.4% of gastrointestinal tumors.
- The estimated prevalence of appendix cancer is approximately 0.12 cases per 100,000 individuals in the United States.[3]
- The estimated prevalence of adenocarcinoma of the appendix is 0.2 cases per 100,000 individuals worldwide;[3] on the other hand,?????????
Case-fatality rate/Mortality rate
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- In [year], the incidence of [disease name] is approximately [number range] per 100,000 individuals with a case-fatality rate/mortality rate of [number range]%.
- The case-fatality rate/mortality rate of [disease name] is approximately [number range].
Age
- The incidence of apendix cancer increases with age; meanwhile, patients with carcinoid tumors are generally younger than their adenocarcinoma counterparts.
- The median age at diagnosis is 65 years for adenocarcinoma, compared to t 32-43 years (range, 6 to 80 years) for carcinoid tumors.
- The patients with Tubular carcinoids are significantly younger than the patients with goblet cell carcinoids.[4]
Race
- There is no racial predilection to appendiceal cancers.
Gender
- Generally appendiceal cancers affects men and women equally.
- While in adenocarcinoma there is a male dominant pattern of prevalence, females are more commonly affected by appendiceal carcinoids than men; This might be because of high incidental appendicectomies in women. Nevertheless, in the SEER database, the male to female ratio is approximately 1 to 1.
References ???????????????
- ↑ Modlin IM, Sandor A (1997). "An analysis of 8305 cases of carcinoid tumors". Cancer. 79 (4): 813–29. PMID 9024720.
- ↑ Deans GT, Spence RA (1995). "Neoplastic lesions of the appendix". Br J Surg. 82 (3): 299–306. PMID 7795991.
- ↑ 3.0 3.1 Turaga KK, Pappas SG, Gamblin T (2012). "Importance of histologic subtype in the staging of appendiceal tumors". Ann. Surg. Oncol. 19 (5): 1379–85. doi:10.1245/s10434-012-2238-1. PMID 22302267.
- ↑ Burke AP, Sobin LH, Federspiel BH, Shekitka KM, Helwig EB (1990). "Goblet cell carcinoids and related tumors of the vermiform appendix". Am J Clin Pathol. 94 (1): 27–35. PMID 2163192.