Abstract
Tourette syndrome is generally considered to be a genetic disorder, but symptoms mimicking Tourette syndrome can be secondary to an underlying lesion disrupting the basal ganglia circuitry. Described here is a case of secondary tics, or tourettism, in a child with a large oligodendroglioma of the right temporal lobe extending to the basal ganglia. He presented with attention-deficit hyperactivity disorder, obsessive-compulsive disorder, and stimulant-induced tic disorder at the age of 11 years, and later also had also seizures. The family history was unremarkable. Cranial magnetic resonance imaging disclosed a right temporal lobe tumor extending to the basal ganglia. An alpha-[(11)C]methyl-l-tryptophan positron emission tomography scan showed asymmetric uptake in the basal ganglia and intense uptake in the tumor. He had a lesionectomy, and the histopathologic diagnosis was oligodendroglioma. Neuropsychologic testing after surgery revealed no attention-deficit hyperactivity disorder symptomatology, and only minimal features of obsessive-compulsive disorder. The present case provides additional evidence supporting the role of basal ganglia circuitry in the pathophysiology of tic disorder and its comorbid states. Children who pres...Continue Reading
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