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John Ferris, FRCOphth; Philip Bloom, FRCOphth
London, England

Arch Ophthalmol. 1995;113(5):555-556.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

We would like to comment on the article by De Potter et al¹ that was published in the March 1994 issue of the ARCHIVES. In this article, the authors reported that 41 of 43 uveal melanomas had the "characteristic" magnetic resonance imaging (MRI) appearance of hyperintensity on T₁-weighted images and hypointensity on T₂-weighted images. They also reported that the degree of tumor pigmentation was not significantly related to the signal intensity of the tumors on unenhanced T₁-weighted images, although correlation between tumor pigmentation and signal intensity on T₂-weighted images was not investigated. They concluded that factors other than melanin content may be responsible for the MRI features of these tumors.

Although we agree that the majority of uveal melanomas exhibit this MRI appearance, not all series have reported such a preponderance of tumors exhibiting hyperintensity on T₁ -weighted images and . . . [Full Text PDF of this Article]

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