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Catatonia is a syndrome that is characterized by abnormal body movements, negativism, mutism or disturbances in conscious. During the twentieth century catatonia was accepted as a condition associated with schizophrenia but today it is defined as a separate disorder. Catatonia is a rarely reported condition in children and adolescents and a curable condition with early diagnosis and proper treatment. But it could be a life-threatening disorder if fever and autonomic changes accompany with it. In this report an adolescent diagnosed with catatonia following acute stress disorder and also diagnosed with manic episode in follow-up visits is presented. Thus we aimed to take attention to catatonia that can be neglected in children and adolescents and to follow-up visits of these cases. [Anadolu Psikiyatri Derg 2016; 17(0.300): 84-87]