Sialolithiasis pathophysiology: Difference between revisions

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===Pathogenesis===
===Pathogenesis===


==== Sialolithiasis : ====
==== Sialolithiasis ====
{| align="right"
|[[image:123.jpg|thumb|700px|The major salivary glands.1. Parotid gland, 2. Submandibular gland, 3. Sublingual gland.Source: Wikimedia Commons<ref name="urlFile:Illu quiz hn 02.jpg - Wikimedia Commons">{{cite web |url=https://commons.wikimedia.org/wiki/File:Illu_quiz_hn_02.jpg#/media/File:Illu_quiz_hn_02.jpg |title=File:Illu quiz hn 02.jpg - Wikimedia Commons |format= |work= |accessdate=}}</ref>]]
|}
* Presence of stones within the [[Salivary gland|salivary glands]] or the salivary gland ducts.
* Presence of stones within the [[Salivary gland|salivary glands]] or the salivary gland ducts.


* The exact pathogenesis of sialolithiasis not fully understood but the relative stagnation of salivary flow and calcium concentration may be important.
* The exact pathogenesis of sialolithiasis not fully understood but the relative stagnation of salivary flow and [[calcium]] concentration may be important.


* Component of salivary stones include: <ref name="pmid104777892">{{cite journal |vauthors=Williams MF |title=Sialolithiasis |journal=Otolaryngol. Clin. North Am. |volume=32 |issue=5 |pages=819–34 |year=1999 |pmid=10477789 |doi= |url=}}</ref>
* Component of salivary stones include: <ref name="pmid104777892">{{cite journal |vauthors=Williams MF |title=Sialolithiasis |journal=Otolaryngol. Clin. North Am. |volume=32 |issue=5 |pages=819–34 |year=1999 |pmid=10477789 |doi= |url=}}</ref>
** Calcium phosphate
** [[Calcium phosphate]]
** Hydroxyapatite
** [[Hydroxyapatite]]
** Magnesium
** [[Magnesium]]
** Ammonium
** [[Ammonium]]
** Potassium
** [[Potassium]]


* [[Parotid gland|Parotid]], [[Submandibular gland|submandibular]], [[Sublingual gland|sublingual glands]] and minor salivary glands are prone to the development of stones.<ref name="pmid25443682">{{cite journal |vauthors=Mandel L |title=Salivary gland disorders |journal=Med. Clin. North Am. |volume=98 |issue=6 |pages=1407–49 |year=2014 |pmid=25443682 |doi=10.1016/j.mcna.2014.08.008 |url=}}</ref><ref name="pmid3318353">{{cite journal |vauthors=McKenna JP, Bostock DJ, McMenamin PG |title=Sialolithiasis |journal=Am Fam Physician |volume=36 |issue=5 |pages=119–25 |year=1987 |pmid=3318353 |doi= |url=}}</ref>
* [[Parotid gland|Parotid]], [[Submandibular gland|submandibular]], [[Sublingual gland|sublingual glands]] and minor [[salivary glands]] are prone to the development of stones.<ref name="pmid25443682">{{cite journal |vauthors=Mandel L |title=Salivary gland disorders |journal=Med. Clin. North Am. |volume=98 |issue=6 |pages=1407–49 |year=2014 |pmid=25443682 |doi=10.1016/j.mcna.2014.08.008 |url=}}</ref><ref name="pmid3318353">{{cite journal |vauthors=McKenna JP, Bostock DJ, McMenamin PG |title=Sialolithiasis |journal=Am Fam Physician |volume=36 |issue=5 |pages=119–25 |year=1987 |pmid=3318353 |doi= |url=}}</ref>


* [[Parotid gland|Parotid glands]] and stensen ducts are located anterior to the [[external auditory canal]].
* [[Parotid gland|Parotid glands]] and stensen ducts are located anterior to the [[external auditory canal]].


* [[Submandibular gland|Submandibular glands]] and wharton ducts are located beneath the floor of the mouth.
* [[Submandibular gland|Submandibular glands]] and wharton ducts are located beneath the floor of the [[mouth]].


* [[Sublingual gland|Sublingual glands]] are located beneath the mucous membrane of the floor of the mouth.
* [[Sublingual gland|Sublingual glands]] are located beneath the mucous membrane of the floor of the [[mouth]].


* 75 percent of sialadenosis cases are single  
* 75 percent of sialolithiasis cases are single  


* 3 percent of stones are bilateral and most of them are located in [[Parotid gland|parotid glands]].
* 3 percent of stones are bilateral and most of them are located in [[Parotid gland|parotid glands]].
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* Stones occur equally on the right and left sides.
* Stones occur equally on the right and left sides.
'''Sialoadenitis'''
* [[Inflammation]] of a [[salivary gland|salivary gland]]<ref>{{Cite journal|last=Loury|first=MC|date=2006|title=Salivary gland disorder|url=|journal=Advanced Otolaryngology|volume=|pages=|via=}}</ref>
* [[Swelling]] is usually present
* Acute sialoadenitis may be caused by viral or bacterial infection<ref name="pmid3318353" />
** [[Parotid gland|Parotid]] and [[submandibular gland]]<nowiki/>s are more involved in acute sialadenitis.
* Chronic sialoadenitis is caused by repeated episodes of [[inflammation]] and finally it progresses to salivary gland dysfucntion.
==Associated Conditions==
==Associated Conditions==
* [[Sjögren's syndrome|Sjögrens]]<ref name="pmid23242089">{{cite journal |vauthors=Moghe S, Pillai A, Thomas S, Nair PP |title=Parotid sialolithiasis |journal=BMJ Case Rep |volume=2012 |issue= |pages= |year=2012 |pmid=23242089 |pmc=4543829 |doi=10.1136/bcr-2012-007480 |url=}}</ref>
* [[Sjögren's syndrome|Sjögrens]]<ref name="pmid23242089">{{cite journal |vauthors=Moghe S, Pillai A, Thomas S, Nair PP |title=Parotid sialolithiasis |journal=BMJ Case Rep |volume=2012 |issue= |pages= |year=2012 |pmid=23242089 |pmc=4543829 |doi=10.1136/bcr-2012-007480 |url=}}</ref>
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{{WH}}
{{WH}}
{{WS}}
{{WS}}
[[Category:Gastroenterology]]
[[Category:Gastroenterology]]
[[Category:Medicine]]
[[Category:Medicine]]
[[Category:Up-To-Date]]
[[Category:Up-To-Date]]
[[Category:Primary care]]

Latest revision as of 00:10, 30 July 2020

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mahda Alihashemi M.D. [2]

Overview

Sialolithiasis is the presence of stones within the salivary glands or the salivary gland ducts.The exact pathogenesis of sialolithiasis not fully understood but the relative stagnation of salivary flow and calcium concentration may be important. 75 percent of sialolithiasis cases are single. 3 percent of stones are bilateral and most of them are located in parotid glands. Stone formation is 80 to 90 percent in the submandibular gland, 6 to 20 percent in the parotid glands and 1 to 2 percent in the sublingual or minor salivary glands. Sialoadenitis is inflammation of a salivary gland. Acute sialoadenitis may be caused by viral or bacterial infection. Chronic sialoadenitis is caused by repeated episodes of inflammation. On gross pathology, hard yellow -white spherical depositions usually less than 1 cm are seen. On microscopic pathology, dilated ducts with squamous metaplasia or calculi are usually present.

Pathophysiology

Pathogenesis

Sialolithiasis

The major salivary glands.1. Parotid gland, 2. Submandibular gland, 3. Sublingual gland.Source: Wikimedia Commons[1]
  • The exact pathogenesis of sialolithiasis not fully understood but the relative stagnation of salivary flow and calcium concentration may be important.
  • 75 percent of sialolithiasis cases are single
  • 3 percent of stones are bilateral and most of them are located in parotid glands.
  • Submandibular stones are the largest ones and are often located in the wharton ducts.
  • Parotid stones are the smaller than submandibular stones, and they are more located within the glands and they are more multiple.
  • Stones occur equally on the right and left sides.

Associated Conditions

Gross Pathology

Salivary gland stones- By PGA (Own work), via Wikimedia Commons[7]
  • On gross pathology, hard yellow -white spherical depositions usually less than 1 cm in diameter is characteristic finding of sialolithiasis.[6]















Microscopic Pathology

References

  1. "File:Illu quiz hn 02.jpg - Wikimedia Commons".
  2. Williams MF (1999). "Sialolithiasis". Otolaryngol. Clin. North Am. 32 (5): 819–34. PMID 10477789.
  3. Mandel L (2014). "Salivary gland disorders". Med. Clin. North Am. 98 (6): 1407–49. doi:10.1016/j.mcna.2014.08.008. PMID 25443682.
  4. McKenna JP, Bostock DJ, McMenamin PG (1987). "Sialolithiasis". Am Fam Physician. 36 (5): 119–25. PMID 3318353.
  5. Capaccio P, Torretta S, Ottavian F, Sambataro G, Pignataro L (2007). "Modern management of obstructive salivary diseases". Acta Otorhinolaryngol Ital. 27 (4): 161–72. PMC 2640028. PMID 17957846.
  6. 6.0 6.1 6.2 Moghe S, Pillai A, Thomas S, Nair PP (2012). "Parotid sialolithiasis". BMJ Case Rep. 2012. doi:10.1136/bcr-2012-007480. PMC 4543829. PMID 23242089.
  7. <"http://www.gnu.org/copyleft/fdl.html">GFDL, <"http://creativecommons.org/licenses/by-sa/3.0/">CC-BY-SA-3.0 or <"https://creativecommons.org/licenses/by-sa/2.5-2.0-1.0">CC BY-SA 2.5-2.0-1.0], <"https://commons.wikimedia.org/wiki/File%3ASialolithiasis.jpg">

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