Nasal and paranasal tumors

DEFINITION

Nasal and paranasal tumors are abnormal growths that begin in and around the passageway between your nose and mouth (nasal cavity). Nasal tumors begin in the nasal cavity. Paranasal tumors begin in air-filled chambers around the nose called the paranasal sinuses.

Nasal and paranasal tumors can be noncancerous (benign) or they can be cancerous (malignant). Several types of nasal and paranasal tumors exist. Which type of tumor you have helps determine the best treatment for you.

CAUSES

SYMPTOMS

სხვა დაავადებები

Aortic valve stenosis

DEFINITION Aortic valve stenosis — or aortic stenosis — occurs when the heart’s aortic valve narrows. This narrowing prevents the valve from opening fully, which obstructs blood flow from your heart into your aorta and onward to the rest of…

მეტის ნახვა

Diabetic retinopathy

DEFINITION Diabetic retinopathy (die-uh-BET-ik ret-ih-NOP-uh-thee) is a diabetes complication that affects eyes. It’s caused by damage to the blood vessels of the light-sensitive tissue at the back of the eye (retina). At first, diabetic retinopathy may cause no symptoms or…

მეტის ნახვა

Lynch syndrome

DEFINITION Lynch syndrome is an inherited condition that increases your risk of colon cancer and other cancers. Lynch syndrome has historically been known as hereditary nonpolyposis colorectal cancer (HNPCC).     A number of inherited syndromes can increase your…

მეტის ნახვა

Lymphoma

DEFINITION Lymphoma is a cancer of the lymphatic system, the body’s disease-fighting network.     The lymphatic system includes the lymph nodes (lymph glands), spleen, thymus gland and bone marrow. Lymphoma can affect all those areas as well as…

მეტის ნახვა

Lupus nephritis

DEFINITION Systemic lupus erythematosus — more commonly known as lupus — is an autoimmune disease in which your immune system produces proteins called autoantibodies that attack your own tissues and organs. Some people with lupus develop a form of kidney…

მეტის ნახვა