Definition:A carbohydrate metabolic disorder that involves a defect in galactose metabolism resulting in toxic levels of galactose 1-phosphate in various tissues.
Definition:A cataract that has_material_basis_in autosomal recessive or autosomal dominant inheritance of heterozygous or homozygous mutation in the CRYAA gene, which encodes alpha-A-crystallin, on chromosome 21q22.
Definition:An autosomal dominant distal hereditary motor neuronopathy that is characterized by onset of slowly progressive distal limb weakness and atrophy between the second and fifth decades of life.