Sinusitis is an inflammation, or swelling, of the tissue lining the sinuses. Sinuses make mucus, which keeps the inside of your nose moist. That, in turn, helps protect against dust, allergens, and ...

Dural sinus malformation occasionally results in the development of giant venous lakes involving torcular herophili. Such dilatation can result in the formation of a ...

Cancer can start in the lining of the space behind the nose (nasal cavity) or the nearby air cavities (paranasal sinuses) and sometimes spread to lymph nodes and rarely other parts of the body. Nasal ...

People with hidradenitis suppurativa (HS) sometimes receive misdiagnosis for other conditions, including folliculitis and acne. A dermatologist can make an accurate diagnosis. Hidradenitis suppurativa ...