<unk>  is considered a very rare disease, though the prevalence of it is not exactly known. Less than 150 cases have been reported in literature; of that population, about 60% of cases were of the juvenile/adult subtype with symptoms beginning at or after 16 years of age. It is also documented that most cases occur in people of Japanese descent.
Galactosialidosis
Beta-mannosidosis
Alpha-mannosidosis
Hereditary fructose intolerance
Gangliosidosis
Sialidosis
Aspartylglucosaminuria
Essential fructosuria