is a progressive brain and nerve disorder affecting behavior, language, and strength.

is a rare brain disease causing behavior, language, and movement problems.

is a rare inherited disorder causing dangerous low blood sugar and acidosis.

is an allergic reaction to certain fruits, causing symptoms from mild to severe.

is a rare genetic disorder causing birth defects and developmental problems.

is a very rare genetic condition that affects development and learning.

is a rare genetic disorder causing harmful iron buildup in organs.

is an inherited eye disease that gradually blurs vision over time.

is a chronic eye inflammation that can cause cataracts and glaucoma.

is a usually one-eye uveitis causing iris color change, cataracts, and glaucoma.

is a rare inherited disorder causing progressive nerve, organ, and developmental problems.

is a rare genetic disorder affecting limb and bone development.

is an inherited muscle disease causing weakness in the hips and shoulders.

is a genetic disorder causing multiple nerve tumors (schwannomas) and hearing loss.

is a rare genetic disorder causing multiple painful nerve sheath tumors.

is a sudden, severe viral liver infection that can cause liver failure.

is a rare genetic metabolic disorder causing severe neurologic impairment and seizures.

is a digestive condition causing ongoing bowel symptoms without visible damage.

causes frequent loose stools without a clear disease or structural problem.

is a group of stomach disorders causing ongoing symptoms without clear damage.

is an immune disorder where white blood cells cannot fight germs properly.

is a rare nerve disorder causing sudden weakness, tingling, and reflex loss.

is a rare pituitary tumor that makes excess sex hormones.

is a pancreatic tumor that makes excess hormones and causes symptoms.