Neuronal ceroid lipofuscinosis (patient information)

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 * Associate Editor(s)-In-Chief: Varun Kumar, M.B.B.S.

Overview
Neuronal ceroid lipofuscinoses (NCLS) refers to a group of rare, inherited disorders of the nerve cells.

There are three main types of NCLS:


 * Adult (Kufs' or Parry's disease)
 * Juvenile (Batten disease)
 * Late infantile (Jansky-Bielschowsky)

What are the symptoms of Neuronal ceroid lipofuscinoses?

 * Abnormally increased muscle tone or spasm (myoclonus)
 * Blindness or vision problems
 * Dementia
 * Lack of muscle coordination
 * Mental retardation with decreasing mental function
 * Movement disorder (choreoathetosis)
 * Seizures
 * Unsteady gait (ataxia)

What causes Neuronal ceroid lipofuscinoses?
NCLS is a type of neurodegenerative disorder. It involves the buildup of an abnormal material called lipofuscin in the brain. Evidence suggests that NCLS is caused by problems with the brain's ability to remove and recycle proteins.

Who is at highest risk?
Lipofuscinoses are inherited as autosomal recessive traits. That means if both parents carry the trait, each child has:


 * A 1 in 4 chance of having the disease
 * A 2 in 4 chance of not having the disease but carrying the trait
 * A 1 in 4 chance of not having the disease and not being a carrier

When to seek urgent medical care?
Call your health care provider if your child shows symptoms of blindness or retardation.

Diagnosis
The disorder may be seen at birth, but it is usually diagnosed much later.

Tests include:


 * Autofluorescence (a light technique)
 * EEG
 * Electron microscopy of a skin biopsy
 * Electroretinogram
 * Genetic testing
 * MRI or CT scans of the brain
 * Tissue biopsy

Treatment options
Treatment depends on the type and extent of symptoms. You may need lifelong assistance and care.

Where to find medical care for Neuronal ceroid lipofuscinoses?
Directions to Hospitals Treating Neuronal ceroid lipofuscinosis

What to expect (Outlook/Prognosis)?
The younger the person is when the disease appears, the greater the risk for disability and early death. Those who develop the disease early can have vision problems that progress to blindness, and problems with mental function that get worse. If the disease emerges in the first year of life, death by age 10 is likely.

If the disease occurs in adulthood, symptoms will be milder with no vision loss and a normal life expectancy.

Possible complications

 * Vision impairment or blindness (with the early-onset forms of the disease)
 * Mental impairment, ranging from severe retardation at birth to dementia later in life
 * Rigid muscles (due to severe problems with the nerves that control muscle tone)

The person may become totally dependent on others for help with daily activities.