Swept source: optical coherence tomography angiography features of choroidal osteoma with choroidal neovascular membrane
A 16-year-old boy presented with best-corrected visual acuity of 6/18 OD. OS was within normal limits, as was anterior segment OD. A focal whitish-yellow plaque lesion with overlying areas of depigmentation, and retinal atrophy in the central and superior lateral macula were noted in OD. A choroidal neovascular membrane (CNVM) with subretinal haemorrhage was seen at the lesion's inferior medial edge, involving the fovea (figure 1A). Therefore, diagnosis of choroidal osteoma 1 (CO) was made and confirmed on sonography, with a highly acoustic elevated lesion causing a corresponding shadow (figure 1B).