Although rare, subcutaneous emphysema can have serious repercussions. Manual lymphatic drainage can be an option for the treatment of this aesthetical complication.

Summary: Gasparini JR, Ferreira LC, Rangel VHM -Subcutaneous Emphysema Induced by Supplementary Oxygen Delivery Nasopharyngeal Cannula. Case report. Background and objectives:The development of subcutaneous emphysema involving face, neck, and thorax has been well-documented in cases of odontologic procedures, head and/or neck surgery, and craniofacial trauma. Its development without known damage to the mucosa is rare. This report describes the case of a patient who developed emphysema without an obvious lesion.