Spontaneous pneumomediastinum with subcutaneous emphysema: unusual presenting feature of a common condition

Pneumomediastinum refers to the presence of free air in the mediastinum and is frequently associated with subcutaneous emphysema. It is known that a number of medical and surgical conditions may be complicated by pneumomediastinum. However, here we report the case of a young female in whom pneumomediastinum was the presenting feature of a widespread medical condition rather than its complication