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Abstract

Introduction: Fahr's phenomenon is a rare neurological disorder characterized by calcifications of several structurers of the human brain, including the basal ganglia, the dentate nuclei of the cerebellum, the thalamus, and the hippocampus. It may exist in an idiopathic form or it can be associated to calcium dysmetabolism due to parathormone (PTH) defect or signaling. Symptoms may span from parkinsonism to psychiatric syndromes, ataxia, convulsive seizures and dementia.