PMC6381396_01
Montage image of the left retina shows optic disc pallor (arrowhead). Extensive superficial retinal hemorrhages are seen (arrows) and the retinal veins are dilated and tortuous consistent with central retinal vein occlusion. Few cotton wool spots are seen superotemporal to the optic disc (asterisk). Macular edema can also be made out.
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F1
Fundus exam of OS revealed mild pallor of the optic disc (arrowhead, Figure 1 (Fig. 1)). Figure 1 (Fig. 1)). Few cotton wool spots were noted supero-temporal to the optic disc (asterisk, Figure 1 (Fig. 1)).
The optical coherence tomography image shows extensive macular edema seen as hyporeflective regions within the retina (arrowhead, 2A). Back shadowing due to superficial hemorrhages is also seen. Ultrasound imaging shows thickening of the retina over the posterior pole (arrowhead, 2B).
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F2
OD was normal. Optical coherence tomography of OS showed macular edema (arrowhead, Figure 2A (Fig. 2)) with a central foveal thickness of 1,162 microns (normal: 220-240 microns). Ultrasound scan of OS showed thickened retina at the posterior pole (arrowhead, Figure 2B (Fig. 2)) of the eye suggesting macular edema.
Magnetic resonance imaging of the brain and orbit by axial T2-weighted sequence (A) and fluid-attenuated recovery (FLAIR) sequence images (B) do not show any lesions in the choroid, optic nerve or orbit on both sides.
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F3
Ultrasound abdomen and magnetic resonance imaging of the head and orbit (axial T2-weighted sequence, Figure 3A (Fig. 3); fluid-attenuated inversion recovery sequence (FLAIR), Figure 3B (Fig. 3)) did not show any secondary mass lesions.