Type 3Formerly called juvenile Gaucher disease, Type 3 is characterized by a slowly progressive neurologic disease. Type 3 Gaucher disease is also very rare (an incidence of fewer than 1 in 100,000 people). As in Type 2 Gaucher disease, it does not appear to be concentrated in any particular ethnic group, although a number of cases with Type 3 symptoms have been reported in Scandinavia, particularly Sweden.
The signs and symptoms of Type 3 Gaucher disease appear in early childhood. Other than the nervous system involvement, Type 3 Gaucher symptoms resemble Type 1. Type 3 individuals who reach adolescence may survive into the third or fourth decade.