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Schwannomas rarely present as intraocular tumors and are often misdiagnosed as malignant melanoma. We
describe a choroidal schwannoma confirmed by sclerouvectomy.
A 30-year-old woman presented with a large nonpigmented intraocular mass of the choroid in the right eye and
underwent surgical excision by sclerouvectomy. Histologically, the tumor was composed of a mixture of cellular
solid components (Antoni A) and loose myxoid components (Antoni B). The tumor was eventually diagnosed as a
schwannoma. Currently available ancillary studies are still of little value in definitively differentiating schwannomas
from other choroidal tumors. In the case of atypical findings for a malignant melanoma, a benign neoplasm should
be included in the differential diagnosis. This patient avoided enucleation by first having the mass excised. We are
unaware of previous reports in which a choroidal schwannoma was diagnosed by surgical excision.

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