FP289

MULTIMODAL IMAGING IN A CASE OF CHOROIDAL OSTEOMA

Choroidal osteoma is a rare benign tumor where the choroid gets ossified. A 45 year old lady presented with left eye DOV since 1 month, BCVA 6/18. Right eye BCVA 6/9. Anterior segment exam of both eyes was unremarkable. Left eye fundus- yellowish grey elevated choroidal lesion along the inferotemporal arcade, involving inferior macula. Widefield fundus image was obtained. Fundus autofluorescence- hypoautofluorescent lesion with stippled hyperautofluorescence within. OCT- choroidal mass with subretinal fluid and subretinal hyperreflective material (SHRM). OCTA- network at the site of the SHRM with corresponding flow signal, suggestive of an active choroidal neovascular membrane complex. B scan- hyperechoic choroidal mass with acoustic back shadowing involving macula, giving a double-optic nerve head appearance. Lab investigations were done to rule out other differentials. Intravitreal antiVEGF injection was advised for the CNVM. Multimodal imaging helps come to a conclusive diagnosis.