This paper summarizes the case histories of four young children with concurrent autistic disorder and Williams syndrome. Williams syndrome comprises a peculiar facial appearance, learning disorder, and often hypercalcemia, mild microcephaly, large blood vessel stenosis, and a specific behavioral phenotype. Literature on Williams syndrome is…

This paper presents a case report of a young adult Japanese male with infantile autism who also met diagnostic criteria for seasonal affective disorder and trichotillomania (compulsive hair pulling). The case report deals with difficulties in diagnosing mood disorder in such individuals, potential treatment effectiveness of valproic acid, and…

A case study of an adolescent with catatonia superimposed on autism is presented. The symptoms of the patient are highlighted and include abnormal social interactions, deficits in symbolic play and in communicative language, and occurrence of hallucinations and delusions. Treatment of the patient with clozapine and lorasepam is described. (CR)