• Francisca Montoya, Aaron Vidal, Francisco Sepulveda, Roberto Marileo, Joseline Caro, and Mauricio Castillo.
• Neuroradiology Division, Instituto de Neurocirugía Dr. Asenjo, Santiago, Chile. Electronic address: fran.montoya@gmail.com.
• World Neurosurg. 2021 Feb 1; 146: e30-e37.

BackgroundCavernous sinus hemangiomas (CSHs) are extraaxial vascular malformations that tend to bleed during surgery.MethodsWe reviewed 12 magnetic resonance imaging scans with CSH, 5 of them biopsy proven.ResultsIn our review, CSH commonly presented as a lobulated mass with high, uniform signal intensity on T2-weighted images, a dumbbell shape, and a sellar extension. Two thirds presented a "filling-in" pattern of enhancement on dynamic imaging. These features should lead to a correct preoperative diagnosis, which is essential for surgical planning and avoiding hemorrhagic complications.ConclusionsA combination of low signal on T1, high signal on T2 and fluid-attenuated inversion recovery, no diffusion restriction and homogenous enhancement should place CSH at the top of the list of differential diagnoses. This is especially true when there is a "filling-in" pattern on dynamic or delayed imaging. Doing so may alert surgeons to the possibility of copious intraoperative bleeding and therefore avoid complications of hemorrhage.Copyright © 2020 Elsevier Inc. All rights reserved.

26 keywords...

hide…