Computed tomographic findings of distensible orbital venous anomalies

Ophthalmic Plastic and Reconstructive Surgery
Kyung In WooMoon Hee Han

Abstract

To describe the CT findings of distensible orbital venous anomalies. We reviewed the records of 17 consecutive patients who met the imaging criteria for orbital venous anomalies. We analyzed the clinical data and the CT scans qualitatively and quantitatively. Distensible venous anomalies usually occupied both intraconal and extraconal spaces of the orbit (65%). The contour of the mass was ovoid or fusiform in 3 of the orbits (18%) and tubular or lobular in 14 orbits (82%). The optic nerve was encased by the mass in 8 orbits. Changes in the adjacent bone were detected in 9 orbits. The average volume of the venous anomalies was 1.1 mL in the axial scan and 5.7 mL in the coronal scan. The patients who showed clinically evident exophthalmos on the Valsalva maneuver had larger volumes than those who did not. The orbital structures adjacent to the distensible orbital venous anomalies were vulnerable to intermittent compression. CT scans, including both postcontrast axial and coronal images, were useful in demonstrating the presence of distensible venous anomalies, even in cases with no apparent exophthalmos on the Valsalva maneuver.

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Citations

Sep 19, 2009·Japanese Journal of Ophthalmology·Yun-Jeong Kim, Yoon-Duck Kim
Apr 23, 2009·Indian Journal of Ophthalmology·Venkatesh C Prabhakaran, Dinesh Selva
Nov 17, 2016·Survey of Ophthalmology·Kyle J GodfreyDon O Kikkawa
Mar 23, 2010·Ophthalmic Plastic and Reconstructive Surgery·Nambi NallasamyAaron Fay
Sep 10, 2019·Ophthalmic Plastic and Reconstructive Surgery·Arun Jain, Peter A D Rubin
Jul 28, 2012·Ophthalmic Plastic and Reconstructive Surgery·Nicholas A RameyCat N Burkat

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