Dystonic Movement Disorder as Symptom of Catatonia in Autism Spectrum Disorder.

The case describes the presence among the catatonic symptoms in ASD of involuntary "dystonic" movements; so far, little reported in literature; it highlights that the catatonia may present with a broad spectrum of motor abnormalities. There is still little evidence for treatment of catatonia and ASD. Our case highlights how it is equally important to take into account triggering factors when implementing a nonpharmacological treatment. So, it represents an example of diagnostic and therapeutic challenges of catatonia in ASD, especially in low functioning forms.