PMC3673965_01
Ultrasound scan of the left eye.. Notes: Ultrasound scan of the left eye performed at the original clinic (that of the retina specialist who diagnosed melanoma) was interpreted as suggestive of melanoma. A well-delineated cystic mass lesion measuring 8 mm x 6 mm was noted. It had a high surface reflectivity and low-internal reflectivity with a homogenous echotexture. Another adjacent retinal macrocyst was noted.
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Choroidal melanoma of the left eye was diagnosed based on ultrasound findings (Figure 1). The mass had low reflective internal contents without choroidal excavation (Figures 1 and 3).
Fundus photograph of the left eye.. Notes: Fundus photograph of the left eye revealed an inferotemporal mass lesion. This well-demarcated dark retinal mass had a smooth cystic contour on presentation.
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Examination revealed best corrected visual acuity of 20/30, dark round well-delineated inferotemporal retinal mass (Figure 2), inferotemporal dialysis, and shallow inferior retinal detachment.
Repeat ultrasound scan of left eye (1 week later).. Notes: Repeat ultrasound scan at our clinic. The mass appeared to be encapsulated suggesting a retinal macrocyst. There was an absence of choroidal excavation.
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The mass had low reflective internal contents without choroidal excavation (Figures 1 and 3).
Late frame of fluorescein angiography.. Notes: Late frame of fluorescein angiography: there was blockage of fluorescence by the macrocyst (arrows) with few foci of leakage (retinal mass was mostly hypofluorescent during early, middle and late fluorescein transits with few leakage spots in middle and late phases).
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Intravenous fluorescein angiography revealed blockage of fluorescence by the mass (Figure 4).
Late fluorescein transit of the left eye at presentation.. Notes: There was patchy hyper-autofluorescence of the center and edges of the retinal mass (arrows).
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There was autofluorescence of the center and edges of the retinal mass (Figure 5).
Fundus photograph of the left eye 5 weeks after presentation.. Notes: Fundus photograph of the left eye 5 weeks after presentation. The lesion (arrows) resolved after circumferential scleral buckle and cryopexy to the area of inferotemporal dialysis.
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T1-weighted images and isointense on T2-weighted images. The mass disappeared gradually 5 weeks after scleral buckle with drainage of subretinal fluid (Figure 6).