A case of intraocular schwannoma simulating malignant melanoma Muneaki Matsumoto 1 , Nobuhiko Ueda 1 , Toyoyuki Sai 1 , Tokuhiko Miki 1 , Keiko Nakayama 2 , Yuichi Inoue 2 1Dept of Ophthalmol, Osaka City Univ Med Sch 2Dept of Radiol, Osaka City Univ Med Sch pp.921-924
Published Date 1998/5/15
DOI https://doi.org/10.11477/mf.1410905889
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A 41-year-old male presented with deterioration of vision in his right eye of one year's onset. The affected eye showed posterior synechia and complicated cataract. The visual acuity was counting fingers. Ultrasonography and magnetic resonance imaging showed a large tumor anterior to the fundus. Cataract surgery improved the visual acuity to 0.2 but no details of the fundus could be observed due to dense vitreous opacity. The tumor continued to enlarge slowly. The eye was enucleated under the tentative diagnosis of malignant melanoma. Histological and immunohistochemical studies showed the lesions to be choroidal schwannoma.

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