Dec 14th, 2022 - Diagnosis There is currently no way to diagnose CTE. It can only be suspected in people who are at high risk due to repeated head trauma over the course of years during their sports or military experiences. A diagnosis requires evidence of degeneration of brain tissue and deposits of tau and other proteins in the brain that can be seen only upon inspection after death (autopsy). Some researcher...

Dec 14th, 2022 - Overview Chronic traumatic encephalopathy (CTE) is the term used to describe brain degeneration likely caused by repeated head traumas. CTE is a diagnosis made only at autopsy by studying sections of the brain. CTE is a rare disorder that is not yet well understood. CTE is not related to the immediate consequences of a late-life episode of head trauma. CTE has a complex relationship with head t...

Nov 29th, 2022 - Wet macular degeneration care at Mayo Clinic Your Mayo Clinic care team Mayo Clinic retinal experts collaborate with other specialists to provide care for the whole person. The goal is to improve your quality of life by preserving as much eyesight as possible and preventing further deterioration of your vision. And if you need help dealing with vision loss, Mayo's low vision experts work with y...

Nov 29th, 2022 - Diagnosis Drusen Open pop-up dialog box Close Drusen Drusen The appearance of yellow deposits, called drusen, on color photographs of the retina indicates the development of early-stage dry macular degeneration (left). As the condition progresses to the advanced stage (right), the eye may lose light-sensitive cells that make up the macula. This is known as atrophy. Amsler grid Open pop-up dialo...

Nov 29th, 2022 - Overview Vision with macular degeneration Open pop-up dialog box Close Vision with macular degeneration Vision with macular degeneration As macular degeneration develops, clear, typical vision (left) becomes impaired by a general haziness. With advanced macular degeneration, a blind spot forms at the center of the visual field (right). Wet macular degeneration is a long-lasting eye disorder tha...

Nov 29th, 2022 - Overview Vision with macular degeneration Open pop-up dialog box Close Vision with macular degeneration Vision with macular degeneration As macular degeneration develops, clear, typical vision (left) becomes impaired by a general haziness. With advanced macular degeneration, a blind spot forms at the center of the visual field (right). Wet macular degeneration is a long-lasting eye disorder tha...

Nov 29th, 2022 - Diagnosis Drusen Open pop-up dialog box Close Drusen Drusen The appearance of yellow deposits, called drusen, on color photographs of the retina indicates the development of early-stage dry macular degeneration (left). As the condition progresses to the advanced stage (right), the eye may lose light-sensitive cells that make up the macula. This is known as atrophy. Amsler grid Open pop-up dialo...

Nov 29th, 2022 - Overview Vision with macular degeneration Open pop-up dialog box Close Vision with macular degeneration Vision with macular degeneration As macular degeneration develops, clear, typical vision (left) becomes impaired by a general haziness. With advanced macular degeneration, a blind spot forms at the center of the visual field (right). Wet macular degeneration is a long-lasting eye disorder tha...

Nov 29th, 2022 - Overview Vision with macular degeneration Open pop-up dialog box Close Vision with macular degeneration Vision with macular degeneration As macular degeneration develops, clear, typical vision (left) becomes impaired by a general haziness. With advanced macular degeneration, a blind spot forms at the center of the visual field (right). Wet macular degeneration is a long-lasting eye disorder tha...

Nov 23rd, 2022 - Overview Vision with macular degeneration Open pop-up dialog box Close Vision with macular degeneration Vision with macular degeneration As macular degeneration develops, clear, typical vision (left) becomes impaired by a general haziness. With advanced macular degeneration, a blind spot forms at the center of the visual field (right). Dry macular degeneration is a common eye disorder among peo...

Nov 23rd, 2022 - Diagnosis Drusen Open pop-up dialog box Close Drusen Drusen The appearance of yellow deposits, called drusen, on color photographs of the retina indicates the development of early-stage dry macular degeneration (left). As the condition progresses to the advanced stage (right), the eye may lose light-sensitive cells that make up the macula. This is known as atrophy. Amsler grid Open pop-up dialo...

Nov 23rd, 2022 - Dry macular degeneration care at Mayo Clinic Your Mayo Clinic care team Mayo Clinic retinal experts collaborate with other specialists to provide care for the whole person. The goal is to improve your quality of life by preserving as much eyesight as possible and preventing further deterioration of your vision. And when you need help dealing with vision loss, Mayo's low vision experts work with...

Nov 16th, 2022 - Overview What is ultraviolet radiation? Ultraviolet (UV) radiation is a form of energy that the sun produces. You can’t see UV radiation because its wavelengths are shorter than visible light. The UV energy that the sun produces reaches the Earth and provides vitamin D for your body to help you survive. You can also find UV radiation in human-made sources like tanning beds. Exposure to too much...

Sep 13th, 2022 - Overview What is multiple system atrophy? Multiple system atrophy (MSA) is a rare neurological disease that causes certain brain areas to deteriorate. Over time, this disrupts abilities and functions handled by those brain areas. This disease is ultimately fatal. MSA is a new term that combines features of three older condition names. Those conditions are: Shy-Drager syndrome. Sporadic olivopon...

Jul 25th, 2022 - Overview Becker muscular dystrophy (BMD) is a rare, inherited condition that results in progressive muscle degeneration and muscle weakness. What is Becker muscular dystrophy? Becker muscular dystrophy (BMD) is a rare, inherited condition that results in progressive muscle degeneration and muscle weakness. It almost exclusively affects people assigned male at birth due to its X-linked inheritan...

Jul 13th, 2022 - Overview Multiple system atrophy (MSA) is a rare, degenerative neurological disorder affecting your body's involuntary (autonomic) functions, including blood pressure, and motor control. MSA was formerly called Shy-Drager syndrome, olivopontocerebellar atrophy or striatonigral degeneration. MSA shares many symptoms with Parkinson's disease, such as slow movement, rigid muscles and poor balance....

Jun 18th, 2022 - Overview Kyphosis Open pop-up dialog box Close Kyphosis Kyphosis An increased front-to-back curve of the spine is called kyphosis. Kyphosis is an exaggerated, forward rounding of the upper back. In older people, kyphosis is often due to weakness in the spinal bones that causes them to compress or crack. Other types of kyphosis can appear in infants or teens due to malformation of the spine or w...

May 22nd, 2022 - Overview What is a liver hemangioma? A liver hemangioma (hepatic hemangioma) is a noncancerous tumor in your liver. It’s made up of clumped, malformed blood vessels that are fed by the hepatic artery. Hemangioma tumors can occur in various organs, including the brain, where they can sometimes cause problems. In the liver, though, they rarely do. They don’t turn to cancer and only cause symptoms...

May 19th, 2022 - Overview What is caseous necrosis? Caseous necrosis is a type of cellular death that occurs in tissues. Caseous means “cheese-like” and describes the crumbly, white appearance of the tissue after it dies. How does caseous necrosis develop? Caseous necrosis is caused by different infections in your body. When this happens, your body’s immune system responds to the infection, sometimes leading to...

May 17th, 2022 - Overview Huntington's disease is a rare, inherited disease that causes the progressive breakdown (degeneration) of nerve cells in the brain. Huntington's disease has a wide impact on a person's functional abilities and usually results in movement, thinking (cognitive) and psychiatric disorders. Huntington's disease symptoms can develop at any time, but they often first appear when people are in...