Oral cavity & oropharynx
Other nonneoplastic
Mucous cyst

Topic Completed: 1 November 2013

Revised: 31 January 2019

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PubMed Search: Mucous cyst[mh] oral cavity[mh] full text[sb]

Nat Pernick, M.D.
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Table of Contents
Definition / general
Cite this page: Pernick N Mucous cyst. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/oralcavitymucouscyst.html. Accessed August 14th, 2020.
Definition / general
  • Also called mucocele
  • Either stromal reaction to extravasated mucin or retention mucocele
  • May be associated with granulomatous inflammation in Crohn's disease (Hum Pathol 1987;18:405)
  • Stromal reaction to extravasated mucin: due to injured salivary gland, usually lower lip of young person with granulation tissue surrounding mucin filled spaces; cyst may be superficial, appear as blue domed sublingual cyst (ranula) or plunging ranula (extending into neck above hyoid bone)
  • Retention mucocele: older patients, floor of mouth or inside cheek; mucus filled cyst linked by flat, cuboidal or cylindrical cells
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