Commentary on “Basal Ganglia Calcification A Case Report of Fahr Disease With Pure Psychiatric Symptoms”KAHN, DAVID A. MDJournal of Psychiatric Practice®: September 2019 - Volume 25 - Issue 5 - p 391–394 doi: 10.1097/PRA.0000000000000411 Clinical Case Discussions Buy Abstract Author InformationAuthors Article MetricsMetrics Fahr disease, also known as familial idiopathic basal ganglia calcification, is a rare neurodegenerative disorder, the etiology of which remains unknown. Given its various presentations, Fahr disease is presumed to be underdiagnosed and its prevalence underestimated. We present a case of Fahr disease that presented mainly with pure psychiatric symptoms. Isolated psychiatric symptoms without neurological manifestations are rarely seen in patients diagnosed with Fahr disease. Psychiatrists should consider Fahr disease as a differential diagnosis in the evaluation of psychiatric illness. KAHN: Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY The authors declare no conflicts of interest. Please send correspondence to: Gerasimos Konstantinou, MD, MC, PhDc, 251 Hellenic Airforce V.A. General Hospital, 3rd Kanellopoulou Avenue, Athens PC 11525, Greece (e-mail: email@example.com). Online date: September 6, 2019 Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.