A 25-year-old white male patient was admitted to the Department of Psychiat
ry, Division of Social Psychiatry, of the University of Vienna, Austria, fo
r severe social withdrawal, selective mutism and outbursts of violence with
attacks on his mother. Careful examination revealed the presence of all th
e typical symptoms of Asperger's syndrome. The diagnosis had never been mad
e before, although the patient had a history of a difficult childhood with
several admissions to a child psychiatric inpatient unit for 'obsessional n
eurosis' and an institutional career, It is stressed that, in view of the a
vailability of treatments and the deleterious effect of the untreated condi
tion in the sensitive years of personality development, early recognition a
nd diagnosis of Asperger's syndrome are of utmost importance.