Any bilateral striopallidodentate calcinosis in which the cause of the disease is a mutation in the XPR1 gene. The disease is Monarch Disease Ontology identifier MONDO_0014628 (basal ganglia calcification, idiopathic, 6). Also known as: XPR1 bilateral striopallidodentate calcinosis, basal ganglia calcification, idiopathic, type 6, bilateral striopallidodentate calcinosis caused by mutation in XPR1.