Pleomorphic adenoma epidemiology and demographics

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:

Overview

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.
  • Pleomorphic adenoma distribution among the salivary glands is as follows[2]:
    • Parotid gland: 84%
    • Submandibular gland: 8%
    • Minor salivary glands: 6.5%

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)

References

  1. 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.
  2. Zhan KY, Khaja SF, Flack AB, Day TA (April 2016). "Benign Parotid Tumors". Otolaryngol. Clin. North Am. 49 (2): 327–42. doi:10.1016/j.otc.2015.10.005. PMID 27040584.

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