Sandbox:Maneesha: Difference between revisions
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===Gender=== | ===Gender=== | ||
*Females are predominantly affected by Pleomorphic adenoma than males. The female to male ratio is approximately (2:1) | *Females are predominantly affected by Pleomorphic adenoma than males. The female to male ratio is approximately (2:1) | ||
==Causes== | |||
*The exact causes of Pleomorphic adenoma are unknown but the tumor has been found to increase 15-20 years after radiation exposure. | |||
*Simian virus(SV40) may play a role in the development of Pleomorphic adenoma.<ref name="pmid12368186">{{cite journal |vauthors=Martinelli M, Martini F, Rinaldi E, Caramanico L, Magri E, Grandi E, Carinci F, Pastore A, Tognon M |title=Simian virus 40 sequences and expression of the viral large T antigen oncoprotein in human pleomorphic adenomas of parotid glands |journal=Am. J. Pathol. |volume=161 |issue=4 |pages=1127–33 |date=October 2002 |pmid=12368186 |pmc=1867276 |doi=10.1016/S0002-9440(10)64389-1 |url=}}</ref> | |||
==Risk factors== | |||
Prior head and neck irradiation is a risk factor for the development of Pleomorphic adenoma.<ref name="pmid30028745">{{cite journal |vauthors=Gündüz AK, Yeşiltaş YS, Shields CL |title=Overview of benign and malignant lacrimal gland tumors |journal=Curr Opin Ophthalmol |volume=29 |issue=5 |pages=458–468 |date=September 2018 |pmid=30028745 |doi=10.1097/ICU.0000000000000515 |url=}}</ref> | |||
Revision as of 21:31, 8 January 2019
Epidemiology and Demographics
Incidence
- The annual incidence of Pleomorphic adenoma is approximately 2-3.5 cases per 100,000 population.[1]
- It accounts for 45-75% of all salivary gland neoplasms.
Age
- People of all age groups may develop Pleomorphic adenoma.[1]
- The incidence of Pleomorphic adenoma increases with age; the average age at diagnosis is 43-46 years.
Race
There is no racial predilection to Pleomorphic adenoma.
Gender
- Females are predominantly affected by Pleomorphic adenoma than males. The female to male ratio is approximately (2:1)
Causes
- The exact causes of Pleomorphic adenoma are unknown but the tumor has been found to increase 15-20 years after radiation exposure.
- Simian virus(SV40) may play a role in the development of Pleomorphic adenoma.[2]
Risk factors
Prior head and neck irradiation is a risk factor for the development of Pleomorphic adenoma.[3]
\
References=
- ↑ 1.0 1.1 Pinkston JA, Cole P (June 1999). "Incidence rates of salivary gland tumors: results from a population-based study". Otolaryngol Head Neck Surg. 120 (6): 834–40. doi:10.1016/S0194-5998(99)70323-2.
- ↑ Martinelli M, Martini F, Rinaldi E, Caramanico L, Magri E, Grandi E, Carinci F, Pastore A, Tognon M (October 2002). "Simian virus 40 sequences and expression of the viral large T antigen oncoprotein in human pleomorphic adenomas of parotid glands". Am. J. Pathol. 161 (4): 1127–33. doi:10.1016/S0002-9440(10)64389-1. PMC 1867276. PMID 12368186.
- ↑ Gündüz AK, Yeşiltaş YS, Shields CL (September 2018). "Overview of benign and malignant lacrimal gland tumors". Curr Opin Ophthalmol. 29 (5): 458–468. doi:10.1097/ICU.0000000000000515. PMID 30028745.