ORAL PATHOLOGY: Mucocele

Mucocele 
Secondary to trauma
70% occur in lower lip
Excisional biopsy usually curative
Treatment should include removal of sublingual gland

Mucus is the exclusive secretory product of the accessory minor salivary glands and the most prominent product of the sublingual gland. The mechanism for mucus cavity development is extravasation or retention Secondary to trauma 70% occur in lower lip
Extravasation is the leakage of fluid from the ducts or acini into the surrounding tissue.
Extra: outside, vasa: vessel
Retention: narrowed ductal opening that cannot adequately accommodate the exit of saliva produced, leading to ductal dilation and surface swelling, less common phenomenon. Lacks a true epithelial lining
Treatment of Mucocele
Excision with strict removal of associated minor salivary glands  
Avoid injury to other glands during primary wound closure