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Magnetic resonance imaging (MRI) is used to visualize delicate structures, such as organs and soft tissue, using radio waves and a large magnet. Saint Luke's uses the most advanced MRI equipment, creating clear images that lead to accurate diagnoses and extraordinary care.

Myasthenia gravis (MG) is a chronic autoimmune disorder in which the body attacks its own neuromuscular connections. This causes problems with communication between nerves and muscle. The result is weakness. MG affects the voluntary muscles of the body. The eyes, mouth, throat, and limbs are especially affected.

MG can occur at any age. This includes childhood. But it occurs most often in young adult women under age 40 and men over age 60.