Salivary gland tumor classification: Difference between revisions

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Salivary gland tumor may be classified according to the World Health Organization into five groups: [[malignant]] [[epithelial]] [[tumors]], [[benign]] [[epithelial]] [[tumors]], [[soft tissue tumors]], hematolymphoid tumors, and secondary tumors.<ref name="wiki">  Salivary gland neoplasm. Wikipedia(2015) https://en.wikipedia.org/wiki/Salivary_gland_neoplasm Accessed on November 8, 2015</ref>
Salivary gland tumor may be classified according to the World Health Organization into five groups: [[malignant]] [[epithelial]] [[tumors]], [[benign]] [[epithelial]] [[tumors]], [[soft tissue tumors]], hematolymphoid tumors, and secondary tumors.<ref name="wiki">  Salivary gland neoplasm. Wikipedia(2015) https://en.wikipedia.org/wiki/Salivary_gland_neoplasm Accessed on November 8, 2015</ref>
==Classification==
==Classification==
*In comparison to tumors arising in the parotid, 70 to 90 percent of sublingual gland tumors, 50 to 75 percent of minor salivary gland tumors, and 40 to 45 percent of [[submandibular]] gland tumors are [[malignant]]. Approximately 85% of salivary gland tumors occur in the parotid glands, followed by the minor salivary glands and submandibular, and about 1% occur in the [[sublingual]] [[glands]]. Overall approximately 80% of all parotid masses are benign.<ref name="radio">  Salivary gland tumors. Radiopedia(2015) http://radiopaedia.org/articles/salivary-gland-tumours Accessed on November 8, 2015</ref>
Due to diverse nature of salivary gland neoplasms, many different terms and classification systems have been used. The World Health Organization in 2004, classified salivary neoplasms as primary or secondary, [[benign]] or [[malignant]], and also by tissue of origin. This system defines five broad categories of salivary gland neoplasms:<ref name="wiki">  Salivary gland neoplasm. Wikipedia(2015) https://en.wikipedia.org/wiki/Salivary_gland_neoplasm Accessed on November 8, 2015</ref>
*Histologically, [[pleomorphic adenoma]] is the most common type of benign salivary gland tumor, which comprises about half of all salivary tumors. Other rarer benign salivary gland tumors include  [[basal cell]] [[adenoma]], [[Warthin]] [[tumor]], and [[canalicular adenoma]]. The most common malignant salivary gland tumors are [[adenoid]] [[cystic]] carcinoma and [[mucoepidermoid]] carcinoma, which together constitute approximately one-half of all malignant salivary gland tumors.
Due to diverse nature of salivary gland neoplasms, many different terms and classification systems have been used. Currently, the system proposed by the World Health Organization in 2004, which classifies salivary neoplasms as primary or secondary, [[benign]] or [[malignant]], and also by tissue of origin is the most widely used system. This system defines five broad categories of salivary gland neoplasms:<ref name="wiki">  Salivary gland neoplasm. Wikipedia(2015) https://en.wikipedia.org/wiki/Salivary_gland_neoplasm Accessed on November 8, 2015</ref>
===Malignant epithelial tumors===
===Malignant epithelial tumors===
*[[Acinic cell carcinoma]]
*[[Acinic cell carcinoma]]
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[[Category:Disease]]
[[Category:Disease]]
[[Category:Rare cancers]]
[[Category:Rare cancers]]
[[Category:Up-To-Date]]
[[Category:Oncology]]
[[Category:Medicine]]
[[Category:Gastroenterology]]
[[Category:Surgery]]
[[Category:Otolaryngology]]

Latest revision as of 15:27, 27 November 2017

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]}Associate Editor(s)-in-Chief: Simrat Sarai, M.D. [2]

Overview

Salivary gland tumor may be classified according to the World Health Organization into five groups: malignant epithelial tumors, benign epithelial tumors, soft tissue tumors, hematolymphoid tumors, and secondary tumors.[1]

Classification

Due to diverse nature of salivary gland neoplasms, many different terms and classification systems have been used. The World Health Organization in 2004, classified salivary neoplasms as primary or secondary, benign or malignant, and also by tissue of origin. This system defines five broad categories of salivary gland neoplasms:[1]

Malignant epithelial tumors

Benign epithelial tumors

Soft tissue tumors

Hematolymphoid tumors

Secondary tumors

Secondary tumor is a tumor which has metastasized to the salivary gland from a distant location.

Tumors not included in the WHO classification above, include:

Hybrid tumor is a tumor displaying combined forms of histologic tumor types.
  • Hybrid carcinoma
  • Others
  • Others
    • Keratocystoma
    • Sialolipoma

References

  1. ↑ 1.0 1.1 Salivary gland neoplasm. Wikipedia(2015) https://en.wikipedia.org/wiki/Salivary_gland_neoplasm Accessed on November 8, 2015

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