What is Lambert-Eaton syndrome? Lambert-Eaton syndrome is also known as Lambert-Eaton myasthenic syndrome. It is a rare, autoimmune disorder in which the immune system attacks the neuromuscular ...

Rett syndrome (RTT) is a rare, severe, and progressive disorder that mostly affects girls of all races. It can impact your child’s ability to speak, walk, eat, or breathe easily. It was named ...

Dandy-Walker syndrome, also known as the Dandy-Walker malformation, is a rare, congenital hydrocephalus (a buildup of fluid in the brain) that affects the cerebellum portion of the brain. The ...

In 2022, Dion announced that she was diagnosed with stiff person syndrome, a rare neurological disorder that causes muscle spasms and impacts her ability to sing. At the time, Dion canceled all of ...