%0 Journal Article %T Arterial Pseudoaneurysm following Radiotherapy in Patients with a History of Nasopharyngeal Carcinoma %A Garret Choby %A Navarat Tangbumrungtham %A Robert Dodd %A Zara M. Patel %J Archive of "OTO Open". %D 2019 %R 10.1177/2473974X18823002 %X Epistaxis may be a harbinger of a serious complication among patients who have previously undergone radiotherapy (RT) of the nasopharynx or cranial base. We present 2 cases of life-threatening epistaxis arising from major arterial sources in patients with a history of nasopharyngeal carcinoma (NPC) following definitive RT. Approval was obtained from the Stanford University Institutional Review Board %K pseudoaneurysm %K carotid %K nasopharyngeal carcinoma %K epistaxis %K embolization %K osteoradionecrosis %K ORN %K NPC %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6572923/