neuronal ceroid lipofuscinosis
The neuronal ceroid lipofuscinoses (NCLs) are a group of genetic neurodegenerative disorders of the childhood in which there is excessive accumulation of lipofuscin.
The group consists of :
- type 1: Santavuori-Haltia disease
- type 2: Jansky-Bielschowsky disease
- type 3: juvenile, Batten-Spielmeyer-Vogt disease
- type 4: Kufs disease
- type 5: Finnish variant late infantile
- type 6: variant late infantile
- type 7: CLN7
- type 8: CLN8
- type 9
- type 10: CLN10 disease
Clinical presentation
Clinical presentation is heterogeneous as is onset, which renders the diagnosis hard to make. Skin punch biopsy can reveal abnormality typical of the disease.
MR brain volumetry has been shown to correlate well with disease progression, more so than current clinical disease scores.
Radiographic features
Radiographic features are non-specific and include mainly generalized brain atrophy and white matter changes probably induced by Wallerian degeneration and gliosis . Brain atrophy can be extreme with end stage disease, associated with diffuse (complete) white matter changes . Cerebellar atrophy tends to be significant.
MRI
- T2/FLAIR:
- non-specific hyperintense white matter changes
- at the extreme of the spectrum, the white matter can appear more hyperintense than the grey matter
- infantile subtypes:
- thin hyperintense periventricular bands
- late infantile subtypes:
- hypointense thalami (late infantile subtypes) or basal ganglia
- non-specific hyperintense white matter changes
- spectroscopy:
- reduced NAA
- elevated mobile lipids (ML) on protonic spectroscopy
Siehe auch:
- Batten-Kufs-Syndrom
- Neuronale Ceroid-Lipofuszinose Typ 3
- Neuronale Ceroid-Lipofuszinose Typ 6
- Neuronale Ceroid-Lipofuszinose Typ 5
- Neuronale Ceroid-Lipofuszinose Typ 7
- Neuronale Ceroid-Lipofuszinose Typ 8
- Neuronale Ceroid-Lipofuszinose Typ 1
- Neuronale Ceroid-Lipofuszinose Typ 9
- Neuronale Ceroid-Lipofuszinose Typ 2
- Neuronale Ceroid-Lipofuszinose Typ 10