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Biol Psychiatry. 1983 May;18(5):591-601.

Neuropsychiatric disturbances associated with idiopathic calcification of the basal ganglia.


A patient with idiopathic calcification of the basal ganglia (ICBG) manifested a schizophrenialike psychosis beginning at age 17 and later developed a complex movement disorder and mild dementia. Extensive calcification of the basal ganglia was demonstrated by computerized tomography. Review of reported cases of ICBG suggests that patients who become symptomatic early in adulthood are more likely to present with psychosis, whereas those presenting later in life typically manifest dementia and a motor system disorder. ICBG, like other conditions affecting subcortical structures, can produce schizophrenialike symptoms that may precede the onset of intellectual deterioration and extrapyramidal motor disturbances.

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