Fig. 2
From: Pneumomediastinum after laughing gas inhalation: not a laughing matter anymore—a case report

Axial sections demonstrating pneumomediastinum (blue arrow) and subcutaneous emphysema (orange arrow)
From: Pneumomediastinum after laughing gas inhalation: not a laughing matter anymore—a case report
Axial sections demonstrating pneumomediastinum (blue arrow) and subcutaneous emphysema (orange arrow)