• Ana Penezić, Luka Ljubešić, Tomislav Gregurić, Krešo Zurak, Davor Vagić, and Dijana Zadravec.
• Department of Otolaryngology and head and neck surgery, Clinical Hospital Center "Sisters of Mercy", Vinogradska Street 29, 10000 Zagreb, Croatia.
• Auris Nasus Larynx. 2019 Dec 1; 46 (6): 912-916.

AbstractA neck mass has a broad and complex differential diagnosis, generally divided into neoplastic, congenital and inflammatory categories. An internal carotid artery hemorrhage with pseudoaneurysm formation is a very rare entity that may resemble other common conditions in the differential diagnosis. Large, expanding or symptomatic pseudoaneurysm is critical to efficiently diagnose and manage, due to risk of life-threatening hemorrhage. We present a case of an adult male patient with clinical and laboratory signs of severe neck cellulitis and a large gradually increasing neck mass, primarily suggestive of an abscess. Neck CT and MRI imaging revealed the presence of a disruption of the internal carotid artery resulting in a large hematoma and formation of pseudoaneurysm. A multidisciplinary team of interventional radiologists and ENT surgeons successfully treated the patient by endovascular placement of stents and subsequent surgical drainage. Awareness of such a rare, life-threatening condition and efficient multidisciplinary teamwork are essential for patient management.Copyright © 2019 Elsevier B.V. All rights reserved.

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