diagnosed using tool Extrapyramidal Symptoms Extrapyramidal Tract Signs Extrapyramidal Dysfunction Sufficient Extrapyramidal Signs Extrapyramidal Syndrome Abnormality of Extrapyramidal Motor Function HP:0002071 SCDO:0001311 A neurological condition related to lesions of the basal ganglia leading to typical abnormalities including akinesia (inability to initiate changes in activity and perform volitional movements rapidly and easily), muscular rigidity (continuous contraction of muscles with constant resistance to passive movement), chorea (widespread arrhythmic movements of a forcible, rapid, jerky, and restless nature), athetosis (inability to sustain the muscles of the fingers, toes, or other group of muscles in a fixed position), and akathisia (inability to remain motionless). Abnormal Nervous System Physiology Genetic Testing Magnetic Resonance Imaging Liver Function Test Blood Test Serum Ferritin Test