Spontaneous Pneumomediastinum Associated with Semaglutide Therapy: A Case Report.

INTRODUCTION: The seemingly harmless side effects of semaglutide, such as vomiting, may rarely lead to serious complications. This case is unique in highlighting spontaneous pneumomediastinum (SPM) as a potential consequence of unsupervised semaglutide use, adding new insight to the literature on the safety profile of weight-loss medications. CASE PRESENTATION: We report the case of a 26-year-old woman who developed SPM shortly after the self-administered use of semaglutide purchased online for weight loss. The patient presented with vomiting, chest and neck pain, and progressive facial swelling. Imaging revealed extensive pneumomediastinum and cervicothoracic emphysema. Oesophago-gastro-duodenoscopy was performed to rule out oesophageal perforation and showed no abnormalities. The patient was managed conservatively with spontaneous recovery. CONCLUSION: This case highlights the importance of distinguishing SPM from life-threatening conditions such as Boerhaave's syndrome and raises concerns regarding the unsupervised use of injectable weight-loss medications, emphasizing the need for patient education and careful monitoring.