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==Gross Pathology==
==Gross Pathology==
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|[[image:300px-Sialolithiasis.jpg|thumb|300px|Sialolithiasis- By PGA (Own work), via Wikimedia Commons<ref><"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"></ref>]]}
*On gross pathology, hard yellow -white spherical depositions usually less than 1 cm in diameter is  characteristic finding of sialolithiasis.<ref name="pmid23242089" />
*On gross pathology, hard yellow -white spherical depositions usually less than 1 cm in diameter is  characteristic finding of sialolithiasis.<ref name="pmid23242089" />
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==Microscopic Pathology==
==Microscopic Pathology==

Revision as of 21:04, 30 January 2018

Sialolithiasis Microchapters

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

Overview

The exact pathogenesis of [disease name] is not fully understood.

OR

It is thought that [disease name] is the result of / is mediated by / is produced by / is caused by either [hypothesis 1], [hypothesis 2], or [hypothesis 3].

OR

[Pathogen name] is usually transmitted via the [transmission route] route to the human host.

OR

Following transmission/ingestion, the [pathogen] uses the [entry site] to invade the [cell name] cell.

OR


[Disease or malignancy name] arises from [cell name]s, which are [cell type] cells that are normally involved in [function of cells].

OR

The progression to [disease name] usually involves the [molecular pathway].

OR

The pathophysiology of [disease/malignancy] depends on the histological subtype.

Pathophysiology

Pathogenesis

Sialolithiasis :

  • Presence of stones within the salivary glands or the salivary gland ducts.
  • The exact pathogenesis of sialolithias is not fully understood but relative stagnation of salivary flow and calcium concentration may be important.
  • Component of salivary stones include: [1]
    • Calcium phosphate
    • Hydroxyapatite
    • Magnesium
    • Ammonium
    • Potassium
  • Parotid, submandibular, sublingual glands and minor salivary glands are prone to the development of stones.[2][3]
  • Parotid glands and stensen ducts are located anterior to the external auditory canal.
  • Submandibular glands and wharton ducts are located beneath the floor of the mouth.
  • Sublingual glands are located beneath the mucous membrane of the floor of the mouth.
  • 75 percent of sialadenosis 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.
  • Stone formation is 80 to 90 percent in the submandibular gland, 6 to 20 percent in the parotid glands, 1 to 2 percent occur in the sublingual or minor salivary glands.[4]
  • Stones occur equally on the right and left sides.

Sialoadenitis

  • Inflammation of a salivary gland
  • Swelling is usually present
  • Acute sialoadenitis may be caused by viral or bacterial infection[3]
    • Parotid and submandibular glands 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

Gross Pathology

Sialolithiasis- By PGA (Own work), via Wikimedia Commons[6]
}
  • On gross pathology, hard yellow -white spherical depositions usually less than 1 cm in diameter is characteristic finding of sialolithiasis.[5]








Microscopic Pathology

  • On microscopic histopathological analysis,
    • Dilated ducts with squamous metaplasia or calculi
    • Chronic inflammation
    • Destruction of acini
    • Fibrosis in sialadenitis

References

  1. Williams MF (1999). "Sialolithiasis". Otolaryngol. Clin. North Am. 32 (5): 819–34. PMID 10477789.
  2. Mandel L (2014). "Salivary gland disorders". Med. Clin. North Am. 98 (6): 1407–49. doi:10.1016/j.mcna.2014.08.008. PMID 25443682.
  3. 3.0 3.1 McKenna JP, Bostock DJ, McMenamin PG (1987). "Sialolithiasis". Am Fam Physician. 36 (5): 119–25. PMID 3318353.
  4. 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.
  5. 5.0 5.1 5.2 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.
  6. <"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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