A member asked:

My head mri showed a small retention cyst in the sphenoid sinus.headaches and dizziness last week hence the mri.smoker, sleep apnea from time to time.?

3 doctors weighed in across 2 answers

MRI very sensitive: Just because you have something in the sinus, it does not mean it is the cause of your symptoms. Retention cysts are common. Does light or sound bother you when you have the headache? Do you have visual changes before the headache comes? If so you may have migraine.

Answered 4/1/2016

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Dr. Scott Bobbitt answered

Specializes in Dentistry

Address sleep apnea: And quit smoking-both asap. The retention cyst is basically irrelevant unless it blocks natural drainage of the structure.

Answered 1/1/2018

5.3k views

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