What are mucoceles?

Updated: Mar 01, 2018
  • Author: Itzhak Brook, MD, MSc; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Mucoceles are chronic epithelial cysts that develop in sinuses in the presence of either an obstructed sinus ostium or minor salivary gland duct. They have the potential for progressive concentric expansion that can lead to bony erosion and extension beyond the sinus.

Maxillary sinus mucoceles are usually found incidentally on sinus radiographs and are of little significance in the absence of symptomatology or infection. Frontoethmoidal and sphenoethmoidal mucoceles, on the other hand, tend to be symptomatic and have a high potential for bony erosion.


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