Abstract
Subcutaneous emphysema (SE) refers to trapped air beneath the dermis. It can affect any body site and may spread from one area to another by travelling along fascial planes under the effect of pressure gradient. In some cases, air effusion in different body cavities can secondary occur leading to pneumomediastinum or pneumothorax. SE is not dangerous in it and may regress spontaneously. However, extensive SE complications such as respiratory failure and cardiovascular collapse may engage the vital prognosis requiring urgent care. In this article, we present a case of a 30-year-old male with extensive subcutaneous emphysema associated to a pneumomediastinum, secondary to a deep perianal wound. We report this case for its rarity.
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