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Photo courtesy of: Patrick Ma, M.D. Used with permission. Not to be reproduced.

A 35-year-old woman presents with decreased vision in the left eye (20/80) and is noted to have the above fundus findings. The right eye has normal vision and an unremarkable fundus exam. A fluoroscein angiogram  shows early hyperfluorescence and an ultrasound shows the presence of calcium within the area of question.

The most likely diagnosis is:

c -- choroidal osteoma Choroidal Osteoma These are benign bony tumors primarily located in the juxtapapillary choroid and may enlarge slowly over time.  They are frequented associated with choroidal neovascularization and serous detachments of the retina. Sclerochoroidal calcifications can be seen with hyperparathyroidism, chronic renal failure, and vitamin D intoxication.