Tonsillectomy is one of the most common surgeries performed in the United States.1 A rare vascular complication of tonsillectomy is extracranial internal carotid artery (ICA) pseudoaneurysm, which occurs when a tear in the arterial wall leads to a hematoma and subsequent development of a periarterial fibrous capsule. Expeditious treatment is required to avoid life-threatening complications.
Jafari A, Nuyen B, Kedarisetty S, Fordham CA, Nation J. Sequential Treatment of Delayed Endovascular Coil Extrusion From a Carotid Artery Pseudoaneurysm After Tonsillectomy. JAMA Otolaryngol Head Neck Surg. 2017;143(2):193-195. doi:10.1001/jamaoto.2016.2246