is a rare genetic condition affecting development, movement, and learning.

is a rare brain tumor that may grow slowly but become aggressive.

is a mismatch between a person's gender identity and assigned sex.

is a genetic condition caused by an extra copy of DNA.

is long-lasting, excessive worry with physical symptoms, impacting daily life.

is a rare genetic disorder causing calcium buildup in infants' arteries.

is a buildup of fatty plaques in arteries throughout the body.

is a rare genetic condition causing harmless skin bumps and other abnormalities.

is a rare inherited disorder causing gradually worsening muscle weakness and wasting.

is a movement disorder causing widespread involuntary muscle contractions and abnormal postures.

is a genetic epilepsy syndrome causing febrile seizures and other seizures.

is a genetic epilepsy syndrome causing fever-related and other seizures.

is an inherited seizure disorder causing fever-triggered and other seizures.

is an inherited epilepsy syndrome causing fever-related and other seizures.

is a genetic seizure disorder causing fever-related and other recurrent seizures.

is a genetic epilepsy syndrome causing febrile seizures and other seizure types.

is an inherited seizure disorder causing fever-related and other recurrent seizures.

is an inherited epilepsy causing fever-related and other recurrent seizures.

is an inherited seizure disorder causing fever-related and other seizures.

is a neurological disorder with seizures and episodic involuntary movements (paroxysmal dyskinesia).

is a rare skin disorder causing widespread harmless bumps from histiocyte buildup.

is a rare skin condition causing many rapidly growing, dome-shaped bumps.

is a harmless skin condition causing widespread tiny widened blood vessels.

is a rare inherited disorder affecting how the body processes galactose.