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False-positive magnetic resonance imaging of a metastatic carcinoma simulating a malignant melanoma
F H Davidorf1, R B Chambers, P Gresak
1Ophthalmology Department, Ohio State University, Columbus 43210.
Annals of Ophthalmology
|October 1, 1992
Abstract:
Previous studies have shown the value of magnetic resonance imaging (MRI) in the diagnosis of malignant melanoma of the choroid. We describe the case of a patient with a choroidal mass whose MRI study was characteristic of malignant melanoma. Subsequently the eye was enucleated. However, on histopathologic examination, the mass was a metastatic carcinoma to the choroid. This false-positive study makes us question the value of MRI in the diagnosis of malignant melanoma of the choroid.