, Volume 57, Issue 1, pp 108-112

Hyperreflective dots surrounding the central retinal artery and vein in optic disc melanocytoma revealed by spectral domain optical coherence tomography

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Abstract

Purpose

To report findings of optic disc melanocytoma (ODM) obtained using spectral domain optical coherence tomography (SD OCT), with special reference to the central retinal artery and vein surrounded by hyperreflective dots.

Methods

Retrospective review of five eyes of five patients with ODM. Demographic information, ophthalmic examination including best-corrected visual acuity, dilated funduscopic examination, and SD OCT images were evaluated.

Results

Dome-shaped, darkly pigmented tumors were seen ophthalmoscopically in the optic discs of all eyes. On OCT, the first branches of the central retinal artery and/or vein were well defined as oblique sections of tubular structures with a perivascular distribution of hyperreflective dots in the elevated retina (nerve fiber layer) over the tumor. The portions where these vessels turn toward the retina were displaced more anteriorly than those of eyes without ODM. Hyperreflective dots of various sizes were also observed in elevated retinas over the tumors, which shadowed and obscured the subjacent tissue in all eyes.

Conclusions

SD OCT provides higher definition images of ODM relating to the branches of the central retinal artery/vein, revealing anterior displacement of vessels and perivascular distribution of hyperreflective dots that suggest melanophages and/or tumor cells or proteins and/or lipid deposits.