is a rare cancer affecting the membranes surrounding the spinal cord.

is a rare spinal cord lining tumor that can return after treatment.

is a genetic disorder that weakens muscles and affects breathing.

is a rare genetic disorder causing muscle weakness and brain abnormalities.

is a very severe genetic muscle-weakness disorder present before birth.

is a rare inherited muscle-weakness disorder mainly affecting the legs.

is a rare inherited disorder causing progressive leg weakness and muscle wasting.

is a genetic nerve disorder causing progressive leg weakness and muscle wasting.

is a rare inherited muscle weakness disorder mainly affecting the legs.

is a rare genetic neuromuscular disorder causing infant breathing and muscle weakness.

is a rare inherited disorder causing muscle weakness and serious breathing problems.

is a very rare genetic condition affecting muscles, brain development, and eyes.

is a rare inherited disorder causing muscle weakness and recurrent seizures.

is a rare genetic disorder causing nerve tumors mainly along the spine.

is a viral infection that can affect nerves and cause paralysis.

causes narrowing in the spine that can press on nerves.

is a rare, benign blood vessel growth usually affecting hands or feet.

is a rare eye cancer that starts in pigment-producing cells.

is a rare, benign fatty tumor usually found under the skin.

is a rare cancer of fatty tissue with spindle-shaped tumor cells.

is a rare, usually noncancerous tumor of the pituitary gland.

is a rare cancer of muscle-forming tissue, usually affecting children.

is a rare connective tissue cancer arising from spindle-shaped cells.

is a rare soft tissue cancer that often starts near joints.