Cervicofacial emphysema following unilateral external dacryocystorhinostomies: A case report.

Cervicofacial emphysema (CFE), mostly seen after trauma or dental procedures, is an unexpected, extremely rare condition after uncomplicated dacryocystorhinostomy (DCR). It may be misdiagnosed as angioedema or necrotizing fasciitis. In this article, we present the case of a 40-year-old female with CFE twice after uncomplicated unilateral DCR for left and right sides on different operative days. CFE was confirmed by computed tomography, demonstrating extensive air within subcutaneous tissues of the face, neck, and orbital cavity. Subcutaneous crepitation supported the diagnosis. This is the first case report, to the best of our knowledge, describing a patient with recurrent massive CFE after each unilateral DCR.