Tourette syndrome (TS) is a neurodevelopmental disorder characterized by early onset motor andvocal tics. TS should be differentiated from various movement disorders. We report the case of a 21year-old-man who was admitted to our clinic due to treatment resistant cervical dystonia attributedto neuroleptics. During the last five years he had been treated for depressed mood, somatic delusionsand aggressive behaviour. He had been given SSRIs and atypical antipsychotics at low doses;six months prior to his admission he had been switched to risperidone. Clinical examination revealedtorticollis, motor stereotypies, vocal tics (sniffing, repetition of words), mental koprolalia andobsessive-compulsive symptoms. He complained of repetitive intrusive thoughts of harming his sisterand thoughts of a “delusional” nature regarding somatic complaints. The patient was diagnosedas TS and was successfully treated accordingly. The presented case illustrates that TS can mimicother movement disorders. Whether patients with TS are at higher risk of developing dystonia, ortics and dystonia share a common pathophysiological mechanism (dopamine-inhibiting processesare probably involved in both conditions) is still debatable.

Key words: Tourette syndrome, tics, dystonia, late onset, obsessive-compulsive disorder

G. Persefonis, D. Karaiskos, E. Tzavelas, T. Paparrigopoulos (page 249) - Full article in Greek