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  • Title: False-positive magnetic resonance imaging of a metastatic carcinoma simulating a malignant melanoma.
    Author: Davidorf FH, Chambers RB, Gresak P.
    Journal: Ann Ophthalmol; 1992 Oct; 24(10):391-4. PubMed ID: 1444077.
    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.
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