An atypical case of choroidal osteomas

A choroidal osteoma is a benign choroidal tumor It usually occurs in young, healthy women and is typically unilateral and located in the juxtapapillary region.

A case of bilateral choroidal osteomas occurring in a 32-year-old woman is reported. The visual symptoms coincided with her third pregnancy. The choroidal osteoma in her right eye was elevated with blurred margins and had signs of subretinal fluid. The lesion in her left eye was flat and dry. Both were located superior temporal to the macula. Fluorescein angiography and indocyanine green angiography showed evidence of subretinal fluid in her right eye.

The atypical features of the osteoma in her right eye include its height, evidence of diffuse leakage of subretinal fluid with no definable neovascular membrane, and its possible growth associated with pregnancy. In addition, the location, indistinct borders, and bilateral presentation are not characteristic clinical features of choroidal osteomas.