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ENHANCED DEPTH IMAGING FEATURES OF A CHOROIDAL MACROVESSEL

Choudhry, Netan MD, FRCS(C)*; Rao, Rajesh C. MD†,‡,§,¶

Retinal Cases & Brief Reports: January 2016 - Volume 10 - Issue 1 - p 18–21
doi: 10.1097/ICB.0000000000000157
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Purpose: To report a case of a choroidal macrovessel imaged using enhanced depth imaging spectral domain optical coherence tomography (EDI-OCT) and describe the choroidal features.

Methods: Case report: a 42-year-old man presented with metamorphopsia. Multimodal imaging, including color fundus photography, near-infrared reflectance, and EDI-OCT was used to describe a choroidal macrovessel.

Results: Initial ophthalmic examination revealed a serpentine-shaped subretinal pattern deep to the retina near the fovea. When the color image was subjected to a red filter, a large diameter vessel could be seen coursing from the fovea to the temporal macula. EDI-OCT of the choroidal macrovessel revealed a thickened choroid and mild deformation of both the ellipsoid zone and the choroidal–scleral junction. En face spectral domain optical coherence tomography at the level of the choroid demonstrated the anomalous vessel.

Conclusion: EDI-OCT and en face optical coherence tomography, used in conjunction with other imaging modalities, can be used to demonstrate the presence and pattern of a choroidal macrovessel. A thickened choroid and overlying outer retinal indentation was observed in association of the choroidal macrovessel. These imaging tools can help distinguish this condition from other diagnoses with a similar appearance, such as ophthalmomyiasis.

The structure of a choroidal macrovessel is analyzed using enhanced depth imaging spectral domain optical coherence tomography (EDI-OCT). Enlarged vessel caliber, indentation of the choroidal–scleral junction, and increased choroidal thickness are key features reported for the first time. EDI-OCT may allow for a noninvasive assessment and diagnosis of this condition.

*Vitreoretinal Surgery Service, Herzig Eye Institute, Toronto, Ontario, Canada;

Department of Ophthalmology and Visual Sciences, W.K. Kellogg Eye Center, Ann Arbor, Michigan;

Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan;

§University of Michigan Comprehensive Cancer Center, Ann Arbor, Michigan; and

Division of Ophthalmology, Surgical Service, Veterans Administration Ann Arbor Healthcare System, Ann Arbor, Michigan.

Reprint requests: Netan Choudhry, MD, FRCS(C), Vitreoretinal Surgery Service, Herzig Eye Institute, 131 Bloor Street W. Suite 210, Toronto, ON M5S 1R1, Canada; e-mail: netan.choudhry@gmail.com

Supported by a grant from the National Eye Institute (K12EY022299) to R. C. Rao.

None of the authors have any conflicting interests to disclose.

© 2016 by Ophthalmic Communications Society, Inc.