Sinuses are air-filled sacs (empty spaces) on either side of the nasal cavity that filter and clean the air breathed through the nose and lighten the bones of the skull. There are four paired sinuses ...

Cerebrospinal fluid (CSF) leaks in the sphenoid sinus represent a challenging clinical entity, often occurring in tandem with meningoencephaloceles. These phenomena involve an abnormal communication ...

The sinuses are four hollow spaces on both sides of your face and head. They're connected by narrow channels that allow air and fluids to flow between your nose and throat. If you have inflammation in ...