Abstract
To the Editor: The presence of gas within subcutaneous tissue, known as subcutaneous emphysema (SE), can be a worrisome finding. It may indicate the presence of serious infection or may result from antecedent trauma or rupture of a visceral organ. SE has been described in conjunction with a variety of causes, including dental procedures, endotracheal procedures, respiratory and gastrointestinal tract disease, loosely sutured wounds, and even hydrogen peroxide irrigation.1-3 We report a case of SE of the forearm caused by liquid nitrogen spray to a curetted hypertrophic actinic keratosis (HAK).
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