The sinuses are a connected system of hollow cavities in the skull. The largest sinus cavities are about an inch wide. Others are much smaller. They’re lined with soft, pink tissue called mucosa. Normally, the sinuses are empty, except for a thin layer of mucus.
Otolaryngologist and facial plastic surgeon Mr Florian Bast talks to us about sinuses, the Eustachian tube and the role of balloon technology to treat blocked sinuses and Eustachian tube dysfunction.