Basal Ganglia Calcification, Idiopathic, 1, also known as primary familial brain calcification, is related to basal ganglia calcification and lingual-facial-buccal dyskinesia, and has symptoms including athetosis, cerebellar ataxia and muscle rigidity. An important gene associated with Basal Ganglia Calcification, Idiopathic, 1 is SLC20A2 (Solute Carrier Family 20 Member 2), and among its related pathways/superpathways are Embryonic and Induced Pluripotent Stem Cells and Lineage-specific Markers and Development EGFR signaling via small GTPases. The drug Etidronic acid has been mentioned in the context of this disorder. Affiliated tissues include brain and cortex, and related phenotypes are seizure and cerebral calcification