Niemann-Pick Disease-2
Type
B:
Features of types (cont’d):
Chronic
neuronopathic
No
CNS involvement
No
ethic selection
200-300
cases in USA
Sphingomyelin
is increased
Type
C:
Chronic
neuronopathic
Type
D:
Chronic
neuronopathic
Ethic
selection:
Nova Scotia, Canada
Type
E:
Adult
Non-neuronopathic
Normal
enzyme levels
Niemann-Pick
cell:
