Schizophrenia in a boy of 11 years.
1. A case of schizophrenia with mutism in a child of ii years is described and the differential diagnosis is considered.

2. A positive family history of mental abnormality and a morbid pre psychotic personality were outstanding features in the case.

3. The symptomatology was anomalous, and illustrates the difficulty of diagnosis at this age, except in the light of the development of the illness over a long period.

4. There was no response to any form of treatment.