Myasthenia Gravis

Body Systems Neurologic System Myasthenia Gravis
Neurology Clinical reference

Myasthenia Gravis

MG is an autoimmune neuromuscular junction disorder (AChR antibodies). Fatigable weakness worsening with activity. Myasthenic crisis (respiratory failure) is a life-threatening emergency.

MG myasthenia gravis myasthenic crisis Lambert-Eaton differentiation
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What is myasthenia gravis?Myasthenia gravis, sometimes called MG, is a chronic (long-lasting) disease that causes weakness in your voluntary muscles. The voluntary muscles are the ones that you can control. They include the muscles you use for:Eye and eyelid movementFacial expressionsChewingTalkingSwallowingBreathingMoving your arms and legsYou can also have weakness in other muscles. This weakness gets worse with a…

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Myasthenia Gravis What is myasthenia gravis?Myasthenia gravis, sometimes called MG, is a chronic (long-lasting) disease that causes weakness in your voluntary muscles. The voluntary muscles are the ones that you can control. They include the muscles you use for:Eye and eyelid movementFacial expressionsChewingTalkingSwallowingBreathingMoving your arms and legsYou can also have weakness in other muscles. This weakness gets worse with a… Thymus Cancer The thymus is a small organ in your upper chest, under your breastbone. Before birth and during childhood, the thymus helps the body make a type of white blood cell. These cells help protect you from infections. Cancer of the thymus is rare. You are more likely to get it if you have other diseases such as myasthenia gravis, lupus or rheumatoid arthritis. Sometimes there are no symptoms. Other times, thymus cancer ca… Neuromuscular Disorders Neuromuscular disorders affect your neuromuscular system. They can cause problems with:The nerves that control your musclesYour musclesCommunication between your nerves and musclesThese disorders can cause your muscles to become weak and waste away. You may also have symptoms such as spasms, twitching, and pain.Examples of neuromuscular disorders include:Amyotrophic lateral sclerosisMuscular dystrophyMyasthenia grav… Autoimmune Diseases What are autoimmune diseases?Your immune system protects you from disease and infection by attacking germs that get into your body, such as viruses and bacteria. Your immune system can tell that the germs aren't part of you, so it destroys them. If you have an autoimmune disease, your immune system attacks the healthy cells of your organs and tissues by mistake.There are more than 80 types of autoimmune diseases. Th…