[The concept of «multiple complex developmental disorder» - a disorder of social interaction, paranoid thinking and social anxiety in a 17-year-old boy].

OBJECTIVES

Multiple complex developmental disorder (MCDD) is a little-known disorder characterized by disturbances in the regulation of emotions, social interactions and thought disorders. Neither the classification system of ICD-10 nor the DSM-IV lists MCDD as an independent disorder.

METHODS

The study presents an overview on diagnostic criteria, current research and illustration by a case report of a 17-year-old adolescent.

RESULTS

MCDD, autistic disorders and schizophrenic disorders partially overlap. A clear classification or differentiation is currently not clearly possible.

CONCLUSIONS

Many open questions remain, and further research is needed.