is a common skin condition causing inflamed, sometimes itchy or painful hair follicles.

is a rare type of skin lymphoma affecting hair follicles.

is an immune overreaction to foods, causing hives, swelling, anaphylaxis (life-threatening emergency).

is a rare but serious illness caused by toxin-contaminated food.

is a usually slow-growing tumor near the brainstem and upper spinal cord.

is a rare visual processing disorder causing trouble recognizing shapes and forms.

is a skin reaction caused by allergy to formaldehyde exposure.

is a rare metabolic disorder affecting folate use and histidine breakdown.

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

is a rare birth defect affecting structures in the lower neck.

is an eye movement problem causing vertical double vision and head tilt.

is a rare genetic eye condition affecting vision and early eye development.

is a rare inherited eye disorder causing underdeveloped fovea and early cataracts.

is a rare cause of urinary retention from abnormal sphincter relaxation.

is a rare inherited blood vessel disorder that can affect the brain.

is a rare skin condition causing itchy bumps in sweat gland areas.

is a rare genetic brain disorder affecting development, movement, speech, and learning.

is a rare genetic brain development disorder causing severe developmental delays.

is a rare genetic brain disorder affecting development, movement, speech, and learning.

is an inherited condition causing developmental delay, learning challenges, and autism-like behaviors.

is an inherited condition causing early loss of normal ovarian function.

is a genetic neurologic condition causing tremor, balance problems, and thinking changes.

is a rare inherited disorder affecting bones, eyes, heart, and facial development.

is a rare genetic condition affecting development before birth.