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Tourette syndrome

Summary

Tourette syndrome is a neurobehavioral disorder manifest particularly by motor and vocal tics and associated with behavioral abnormalities. Tics are sudden, brief, intermittent, involuntary or semi-voluntary movements (motor tics) or sounds (phonic or vocal tics). They typically consist of simple, coordinated, repetitive movements, gestures, or utterances that mimic fragments of normal behavior. Motor tics may range from simple blinking, nose twitching, and head jerking to more complex throwing, hitting, or making rude gestures. Phonic tics include sniffling, throat clearing, blowing, coughing, echolalia, or coprolalia. Males are affected about 3 times more often than females, and onset usually occurs between 3 and 8 years of age. By age 18 years, more than half of affected individuals are free of tics, but they may persist into adulthood (review by Jankovic, 2001). [from OMIM]

Available tests

9 tests are in the database for this condition.

Check Related conditions for additional relevant tests.

Clinical tests (9 available)

Molecular Genetics Tests

Genes See tests for all associated and related genes

  • Also known as: , HDC
    Summary: histidine decarboxylase

Clinical features

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Imported from Human Phenotype Ontology (HPO)

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