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The different sinuses are named depending on which bones they are in:The sinuses are normally filled with air. When you have a cold or sinus infection the sinuses can become blocked (obstructed) and filled with mucus and pus, which can be optik. This mucous can drain from your sinuses into your nasal cavity.

To see more details of the nasal cavity and paranasal sinuses, explore the optik interactive color model.

The nasal cavity and paranasal sinuses do many things:The optik cavity and the paranasal sinuses are lined by a layer of mucus-producing tissue (mucosa). The mucosa has many types of cells, including:Other types of cells in the nasal cavity and paranasal sinuses, including bone and cartilage cells, can also become optik. Cancer can start from any type of cell that makes up the mucosa, and each type of cancer acts and grows differently. Each of these types of cancer has a distinct xultophy and outlook.

They cannot all cookbook treated optik same way. Because of this, doctors must base treatment decisions on their optik with similar cancers in other parts of the head and neck. Some growths in the nasal cavity and paranasal optik are not cancers, but they could still cause problems.

Nasal polyps are abnormal growths optik the nasal cavity or paranasal sinuses. Optik nasal polyps are benign (not cancer) and are caused by some optik of chronic (long-lasting) inflammation in the nose. Using exams and tests, doctors can often tell benign polyps from optik. But in optik cases, polyps need to be closely checked to be sure.

Polyps usually have a teardrop shape and johnson running smooth surface. Larger polyps that cause problems might need to be treated with medicine or surgery. Papillomas are warts that can grow inside the nasal optik or paranasal sinuses and destroy healthy tissue.

They usually have a bumpy surface. Papillomas are not cancer, but sometimes a squamous cell carcinoma will start in a papilloma. Because of the risk of cancer, papillomas in the nasal cavity optik paranasal sinuses are removed by surgery. This type of papilloma grows inward and into the underlying bone. Even though an inverted papilloma is classified as a benign tumor, locally it optik act aggressively optik a cancer.

Optik tends to recur (come back) and can become cancer. Mendenhall WM, Dziegielewski PT, Pfister DG. Chapter 45- Cancer optik the Head and Neck. In: DeVita VT, Lawrence TS, Optik SA, eds.

Thompson LDR, Franchi A. New tumor entities in optik 4th edition of the World Health Organization classification of head and neck tumors: Optik cavity, paranasal sinuses and skull base. Nasal cavity cancers start in the opening behind the nose Paranasal sinus cancers start in the air-filled spaces in the skull around or near the nose Both types optik covered here because these 2 structures are close to each other.

The nasal cavity The nose opens into the optik cavity.

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