is a rare neurologic disorder causing progressive movement, thinking, and nerve problems.

is a lifelong condition linked to prenatal alcohol exposure and brain differences.

is a childhood cancer of immature nerve cells, often adrenal glands.

is an outdated term for stress-related heart and circulation symptoms.

is a rare condition with extra pigment cells in skin and brain.

is a group of genetic conditions affecting skin, brain, and causing seizures.

is a rare inherited disorder causing progressive brain damage and movement problems.

is a rare childhood brain disorder causing balance, movement, and eye-movement problems.

is a group of inherited disorders causing iron buildup in the brain.

is a rare inherited disorder causing movement problems and progressive brain degeneration.

is a rare inherited disorder causing iron buildup and progressive movement problems.

is a group of conditions that gradually damage brain and nerve cells.

is a brain disorder causing involuntary movements, thinking problems, and mood changes.

is a group of brain disorders causing dementia and worsening daily function.

is a rare inherited brain disorder caused by poor folate transport.

is a long-lasting skin condition causing itchy, inflamed, and irritated patches.

is a genetic disorder affecting development, balance, muscle tone, and heart rhythm.

is a rare genetic disorder causing developmental delay, ataxia, and feeding problems.

is a rare genetic disorder affecting development, seizures, vision, bones, and balance.

is a neurodevelopmental disorder causing brain differences, poor growth, and facial changes.

is a rare genetic condition causing cataracts, poor growth, and developmental differences.

is a rare genetic condition affecting balance, coordination, and brain development.

is a rare genetic condition affecting development, facial features, and the brain.

is a rare neurodevelopmental disorder causing abnormal eye movements and poor coordination.