Cup-shaped choroidal excavation detected by optical coherence tomography: a case report.
OBJECTIVE
The purpose of this study was to report a case with a cup-shaped choroidal excavation in the fovea. This condition was detected only by optical coherence tomography (OCT) and seems to be rare.


METHODS
This was an observational case report.


RESULTS
A 29-year-old man had a central scotoma in his right eye. Color photography showed a reddish lesion in the fovea of the right eye, which was shown as a window defect on fluorescein angiography. Tomography with time-domain OCT showed a retinal pigment epithelial and choroidal excavation corresponding to the reddish macular lesion in the right eye. By using spectral-domain OCT, the inner segment and outer segment junctions of photoreceptors line thickening was detected by tomography, and the retinal pigment epithelium line was observed in the area of choroidal excavation by segmentation analysis.


CONCLUSIONS
The reddish lesion on ophthalmoscope corresponded to the excavation lesion, detected in the fovea only by OCT; this indicates a new clinical availability of OCT in clinical diagnosis.
From the *Department of Ophthalmology and Visual Sciences, Yamagata University School of Medicine, Yamagata, Japan; and †Department of Ocular Cellular Engineering, Yamagata University Hospital, Yamagata, Japan.
Sachi
S
Abe
Teiko
T
Yamamoto
Eriko
E
Kirii
Hidetoshi
H
Yamashita