Retinal Vascular Occlusion With Overlying Vitreous Hemorrhage Masquerading as a Tumor

Uveal melanoma is the most common primary intraocular malignancy in adults. A collar button-shaped lesion is most often a melanoma, particularly when it has low internal reflectively and moderate vascularity on ultrasonography. Apte et al describe a patient who had a choroidal mass with these features, which was identified as a fibrous membrane and blood clot with a branch retinal vein occlusion.