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A 45-year-old member asked:

Small mucous retention cyst in the left sphenoid sinus what can be the cause?

1 doctor answer1 doctor weighed in
Dr. Franklyn Gergits
ENT and Head and Neck Surgery 31 years experience
Retention cyst: Hello, cysts are commonly found within the paranasal sinuses. It is believed that they occur from an occlusion of an outflow tract from a mucus secreting gland. This gland continues to produce mucus and before long it swells like a water balloon. These cysts can be varying sizes and as long as they don't occlude the sinus ostea, they are just identified and observed. No surgery is needed.
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Last updated Sep 23, 2022


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