Your sinuses are cavities in your skull behind your nose where mucus forms. Sinus cancer is a rare cancer that forms in this area. Various types of cancer can form in your sinuses, but the majority of ...

Sinus tumors develop in your nasal cavity and in the open spaces around your nose, which are called the paranasal sinus cavities. They’re the same areas where you often feel pain and pressure when you ...

National Institute of Neurological Disorders and Stroke investigators at the National Institutes of Health traced meningeal immune activity to dural venous sinuses that actively constrict and dilate, ...