Gaucher disease type 3 (Orphanet rare-disease nomenclature entry Orphanet_77261) is the subacute neurological form of Gaucher disease (GD; see this term) characterized by progressive encephalopathy and associated with the systemic manifestations (organomegaly, bone involvement, cytopenia) of GD type 1 (see this term). Also known as: Cerebral juvenile and adult form of Gaucher disease, Chronic neuronopathic Gaucher disease, Gaucher disease, subacute neuronopathic type.