CAS is often referred to as "verbal dyspraxia" or "developmental apraxia." Despite the usage of the term "developmental," CAS is not an issue that children outgrow. Without therapy, a child with CAS will not learn speech sounds in the regular order and will make no progress. However, with appropriate treatment, many children with CAS can learn to speak again. Children who have CAS are able to say some words but cannot put them together into sentences. They may repeat themselves, use incorrect words, or say things like "I don't know" or "I feel." Many children with CAS understand what others are saying but cannot express themselves properly because they cannot coordinate their mouth and tongue muscles correctly. Some children with CAS may show an interest in certain topics or activities but be unable to communicate their thoughts due to the disorder. CAS can be caused by any of several problems with the brain. The two most common causes are stroke or head injury before age six. Other factors include tumors, infections, hydrocephalus (excessive fluid in the brain), and epilepsy. No single test can diagnose CAS. Your doctor will conduct a clinical examination, ask about your child's symptoms, and review her medical history to determine the cause of the problem. If CAS is found to be the cause, then specific treatments will be recommended for this purpose alone. Otherwise, children with CAS are treated just like other children with speech disorders; however, there is no cure for this condition.