[Unusual cause of pneumomediastinum].

The 3,4-methylenedioxy-N-methylamphetamine (MDMA) also known as ecstasy is a hallucinogen prevalently used by teenagers. Known complications of its consumption are hyperpyrexia, disseminated intravasal coagulation, acute kidney failure, and rhabdomyolysis. We report about an 18-year-old patient who developed a pneumomediastinum and skin emphysema by excluded lesions of the lung and respiratory tract. We present the hypothesis of the pathogenesis of this disease. The correct therapy is observation of the patient and maximum sedation.