Choroidal Osteoma - Spontaneous Regression of Choroidal Osteoma
Images above belong to a 25-year-old female with choroidal osteoma in both eyes that spontaneously regressed over time. Choroidal osteomas are bone that abnormally grows in the choroid. They appear elevated and yellow-white with short branching vessels. These rare tumors are benign and usually unilateral with no genetic inheritance, although they can be bilateral as in this case. Vision is compromised but those with lesions underlying the macula, but peripheral vision is not affected. Progressive vision loss can be caused by atrophy of the retinal pigment epithelium (RPE). In other cases, serous retinal detachments can occur as well as choroidal neovascularization (CNV). This patient has had bilateral choroidal osteomas in both eyes for over 12 years. Her current vision is 20/32 in the right eye and 20/100 in the left. Her fundus photos show scarring in both eyes (white arrows). There are no treatments for choroidal osteomas. However, if CNV occurs intravitreal injections and argon laser are the treatment of choice.