Description : Idiopathic basal ganglia calcification-4 is an autosomal dominant condition characterized
by the accumulation of calcium deposits in various brain regions, most commonly in
the basal ganglia. About half of mutation carriers are asymptomatic, but some present
later in life with parkinsonism and impaired cognitive function. Migraine or depression
may occur in younger individuals (summary by Nicolas et al., 2013). For a detailed
phenotypic description and a discussion of genetic heterogeneity of IBGC, see IBGC1
(213600).;
Inheritance : Autosomal dominant;
Molecular basis : Caused by mutation in the platelet-derived growth factor receptor, beta polypeptide
gene (PDGFRB, 173410.0001);