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Clinical Note
April 19, 2010

Cavernous Carotid Pseudoaneurysm After Endoscopic Sphenoid Mucocele Marsupialization

Author Affiliations

Author Affiliations: Departments of Otolaryngology and Communication Sciences (Drs Pawar and Loehrl), Radiology, Section of Neuroradiology (Dr Michel), and Neurology (Dr Fitzsimmons), Medical College of Wisconsin, Milwaukee; and Division of Rhinology and Sinus Surgery, Zablocki Veterans Affairs Medical Center, Milwaukee (Dr Loehrl).

Arch Otolaryngol Head Neck Surg. 2010;136(4):407-410. doi:10.1001/archoto.2010.29

Mucoceles of the sphenoid sinus are relatively uncommon, representing approximately 1% to 2% of all paranasal sinus mucoceles.1 Management generally consists of endoscopic sphenoidotomy for drainage and marsupialization, a minimally invasive and generally safe procedure.2 Herein, we describe a patient who had a fatal hemorrhage from a right cavernous carotid artery pseudoaneurysm approximately 4 months after he underwent an uncomplicated endoscopic left sphenoidotomy and marsupialization for drainage of a sphenoid mucocele. Although carotid pseudoaneurysm formation has been reported to occur after transsphenoidal surgery, only 1 other case report (to our knowledge) documents the development of a carotid pseudoaneurysm after endoscopic sinus surgery.3

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