The prognosis of individuals diagnosed with<unk>  vary between patients, depending on age and severity of symptoms. Therefore, there is no established average age at which patients die or have increased risk of death. There is no chance of full recovery in any form of the disease. Early infantile Patients diagnosed with early infantile subtype have more severe, threatening symptoms and a decreased chance of survival because this subtype develops more rapidly, however it is noted that most patients do live into late infancy. Late infantile Because patients with late infantile subtype develop symptoms within the first year of life, their condition is not as severe as early infantile subtype and the chance of survival is higher, however the quality of life for the patient will still be greatly affected due to the fact that the patient is so young when symptoms occur. The patient will still require a detailed care plan to manage symptoms. Juvenile/adult Patients diagnosed with juvenile/adult subtype have less severity of symptoms, but will have to manage progressive mental disability, spinal deformities, and seizures amongst other common symptoms. However, this subtype is typically associated with a normal life expectancy.
Galactosialidosis
Beta-mannosidosis
Alpha-mannosidosis
Hereditary fructose intolerance
Gangliosidosis
Sialidosis
Aspartylglucosaminuria
Essential fructosuria