Palamar Melis, Uretmen Onder, Gündüz Kaan
*Department of Ophthalmology, Ege University Faculty of Medicine, Izmir, Turkey †Department of Ophthalmology, Ankara University Faculty of Medicine, Ankara, Turkey.
Retin Cases Brief Rep. 2012 Spring;6(2):166-8. doi: 10.1097/ICB.0b013e318223537c.
To report a case of choroidal osteoma that developed subretinal hemorrhage after photodynamic therapy (PDT).
Interventional case report.
An 8-year-old boy was brought to our attention because of mild visual loss in his left eye. The visual acuity was 20/25. A subfoveal yellow-orange-colored lesion, measuring 5.0 mm × 4.5 mm in base diameter was detected in the left eye. B-mode ultrasonography showed an acoustically solid 2.0-mm-thick mass with orbital shadowing. Orbital computed tomography confirmed the presence of calcium, and choroidal osteoma was diagnosed. As there was a decrease in the best-corrected visual acuity (20/30) and the lesion showed growth (6.0 mm × 6.0 mm), PDT was performed at 6 months follow-up. The day after PDT, the visual acuity was counting fingers at 1 m and a subretinal hemorrhage over the lesion was detected. Two weeks after PDT, subfoveal hemorrhage dissappeared with some retinal pigment epithelial hyperplasia and visual acuity increased back to 20/30.
Although PDT can induce decalcification in choroidal osteomas, it should not be performed in subfoveal osteomas unless there is evidence to treat the lesion such as the presence of choroidal neovascularization.
