By and UPDATED December 16, 2015. The Federal Reserve decided to raise short-term interest rates for the first time since the financial crisis. Officials said the economy was strong enough to keep growing with a little less help from the central bank.
Clinical Relevance: Sinusitis. As the paranasal sinuses are continuous with the nasal cavity, an upper respiratory tract infection can spread to the sinuses. Infection of the sinuses causes inflammation (particularly pain and swelling) of the mucosa, and is known as sinusitis. If more than one sinus is affected, it is called pansinusitis.
1 Different types of cells in the paranasal sinus and nasal cavity may become malignant. 2  Being exposed to certain chemicals or dust in the workplace can increase the risk of paranasal sinus and nasal cavity cancer. 3  Signs of paranasal sinus and nasal cavity cancer include sinus problems and nosebleeds. Signs of paranasal sinus and nasal cavity cancer include sinus problems and nosebleeds. 2  Tests that examine the sinuses and nasal cavity are used to detect (find) and diagnose paranasal sinus and nasal cavity cancer. 3  Certain factors affect prognosis (chance of recovery) and treatment options.