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Tonsillitis is inflammation of the tonsils, two oval-shaped pads of tissue at the back of the throat. Most cases of tonsillitis are caused by infection with a common virus, but bacterial infections ma...

Nearly everyone has experienced or will experience hoarseness in their life, whether the result of a cold or too much cheering at a sports event. Usually, the problem goes away after several days with...

Mouth cancer refers to cancer that develops in any of the parts that make up the mouth (oral cavity). Mouth cancer can occur on the: Floor of the mouth (under the tongue) Gums Inner...

Sleep apnea is a sleep disorder in which breathing repeatedly stops and starts. Signs and symptoms The most common signs and symptoms of sleep apnea include: Awakening with a dry mouth Dif...

Trouble swallowing (dysphagia) means it takes more time and effort to move food or liquid from your mouth to your stomach. Having trouble swallowing may also be associated with pain. In some cases, sw...

Peripheral artery disease (also called peripheral arterial disease) is a common circulatory problem in which narrowed arteries reduce blood flow to your limbs. When you develop peripheral artery dise...

A brain tumor is a mass or growth of abnormal cells in your brain or close to your brain. Many different types of brain tumors exist. Some brain tumors are noncancerous, or benign, and some brain tum...

A brain lesion is an abnormality seen on a brain imaging test, such as an MRI or CT scan. A brain lesion may involve small to large areas of your brain, and the severity of the underlying condition m...

Hydrocephalus is the buildup of fluid in the cavities (ventricles) deep within the brain. The excess fluid increases the size of the ventricles and puts pressure on the brain. Cerebrospinal fluid norm...

Traumatic brain injury occurs when an external mechanical force causes brain dysfunction and usually results from a violent blow or jolt to the head or body. An object penetrating the skull, such as a...