Introduction While child sexual abuse (CSA) involves the child in a physical act, its deleterious consequences are primarily psychological. It is a significant risk factor for the development of psychopathology in childhood, adolescence and adulthood. CSA may be the explicit reason for referral to CAMHS (child and adolescent mental health services), but may also be discovered incidentally during assessment or treatment, especially when common sequelae are encountered. At times, an unsolicited disclosure is made by a child during therapeutic work. Child psychologists, psychiatrists, and psychotherapists may contribute to investigations of CSA, particularly in assessment interviews of young or very traumatized children, or in children with communication difficulties. Consultation to social services in case management and to caregivers of children who have been sexually abused is often requested. Risk assessments of adolescent abusers may also be required. It is therefore of importan...

 Introduction Schizophrenia is a particularly devastating psychiatric disorder. Although extremely rare before the age of 10, the incidence of schizophrenia rises steadily through adolescence to reach its peak in early adult life. Early-onset schizophrenia (EOS) arising in childhood and adolescence is now accepted to be clinically and biologically continuous with the adult-onset disorder. The most striking differences associated with early-onset appear to be the greater clinical severity, more frequent and more pronounced early neurodevelopment abnormalities, and poorer treatment response. The current concept of EOS evolved from a different perspective held during much of the 20th century. Until the early 1970s the term childhood schizophrenia was applied to children who would now be diagnosed with autism. Until the 1990s, there was doubt about the validity of diagnosing schizophrenia in children and younger adolescents. However, in DSM-III and ICD-9 the separate category of childh...