Spontaneous pneumomediastinum, without any triggering factor is described as presentation of air in the mediastinum and this is a benign, uncommon and generally self limiting condition. Admitted to the emergency department the feeling of congestion in the throat and dsypnea complaints, which present a case with the diagnosis of spontaneous pneumomediastinum. She was managed conservatively and recovered uneventfully. Careful physical examination and radiologic evaluation are very important in making the diagnosis of spontaneous pneumomediastinum. A close follow-up is needed to avoid from possible complications.