Optical coherence tomography of choroidal osteoma.
OBJECTIVE
To examine the cross-sectional structure of a choroidal osteoma using optical coherence tomography.


METHODS
Observational case report. A choroidal osteoma in the right eye of a 22-year-old woman was studied with fluorescein and indocyanine green fundus angiograms and optical coherence tomography.


RESULTS
The optical coherence tomography showed that a creamy-white lesion in the tumor had an increased reflectivity with a cavernous structure, whereas an orange lesion showed less reflectivity beneath the apparently intact retinal pigment epithelium. The area of less-intense whiteness in the creamy-white lesion showed higher reflectivity at the level of the retinal pigment epithelium, which precluded our viewing the deeper structure of the tumor.


CONCLUSIONS
Optical coherence tomography can demonstrate the cavernous structure of a choroidal osteoma at a selective stage of a tumor's evolution, namely, when the retinal pigment epithelium is atrophied and the ossification is premature.
Fukasawa
Ayako
A
Department of Ophthalmology, Yamanashi Medical University, Tamaho, Yamanashi, Japan.
Iijima
Hiroyuki
H
D000328:Adult; D002830:Choroid Neoplasms / Q000175:diagnosis*; D003941:Diagnostic Techniques, Ophthalmological; D005260:Female; D005451:Fluorescein Angiography; D006801:Humans; D007368:Interferometry; D008027:Light; D010016:Osteoma / Q000175:diagnosis*; D014054:Tomography / Q000379:methods