Here is an article that breaks down PTSD in children and adolescents. It talks about the difficulty in diagnosing PTSD in children and adolescents, the symptoms they present with and how it varies among the children and adolescents and how it also depends on the actual traumatic event they experienced. There are diagnostic issues in regards to children vs. adults and the problem with using the DSM-IVTR in diagnosing children with PTSD.