Definition
Mucoceles, or mucous cysts, are a common phenomenon orlesion of the oral mucosa, originating from minor salivary glands and theirducts.
Etiology
Local minor trauma and duct rupture or ductal obstruction,probably due to a mucous plug.
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| Mucocele of Lower Lip |
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| Mucocele Of Tongue |
Clinical features
Two main types of mucocele are recognized, according totheir pathogenesis:
- Extravasation mucocele (common), which results fromduct rupture due to trauma and spillage of mucin into the surrounding softtissues;
- Mucous retention cyst (uncommon), which usually resultsfromductal dilation due to ductal obstruction.
Clinically, mucocele presents as a painless, dome-shaped,solitary, bluish or translucent, fluctuant swelling that ranges in size from afew millimeters to several centimeters in diameter (Figs.).
Clinical features
A common finding is that the cyst partially empties and thenre-forms due to the accumulation of new fluid.
The lower lip is the most common site of involvement,usually laterally, at the level of the bicuspids.
Less common sites are the buccal mucosa, tongue, floor ofthe mouth, and soft palate.
Extravasation mucoceles display a peak incidence during thesecond and third decades, while the mucous retention types are more common inolder age groups.
Laboratory tests
Histopathological examination.
Differential diagnosis
- Lymphangioma,
- Hemangioma,
- Lipoma,
- Mucoepidermoid
- Carcinoma,
- Sjögren syndrome,
- Lymphoepithelial cyst.
Treatment
Surgical excision or cryosurgery.
Surgical Excision of Mucocele-Videos
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