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  • Title: Secondary tics or tourettism associated with a brain tumor.
    Author: Luat AF, Behen ME, Juhász C, Sood S, Chugani HT.
    Journal: Pediatr Neurol; 2009 Dec; 41(6):457-60. PubMed ID: 19931171.
    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 present with attention-deficit hyperactivity disorder, obsessive-compulsive disorder, and tic disorder of late onset in the absence of family history should be further investigated with neuroimaging to exclude the presence of a secondary cause.
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