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COMMENTS AND OPINIONS
Magnetic Resonance Imaging Changes Associated With Transient Homonymous Hemianopia in Patients With Nonketotic Hyperglycemia
Patrick Lavin, MD;
Sean Donahue, MD, PhD
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The article by Taban et al1 is both important and interesting; it is important because the condition is not as rare as the authors lead us to believe,2-5 and interesting because their patient's magnetic resonance image (MRI) was reported as normal, which has not been our experience.2
We would be most interested in seeing the images, which were not published. In our experience most patients with nonketotic hyperglycemic hemianopia have abnormal MRI findings,2 though they are sometimes quite subtle and often missed. One of us (P.L.) reported 4 patients with reversible homonymous hemianopias and reversible MRI abnormalities attributed to nonketotic hyperglycemia (NKH).2 In 3 patients the findings were subtle and overlooked initially by radiologists. The most obvious findings2 were decreased T2 signal of the white matter, subtle gyral swelling, enhancement of the overlying meninges, and restricted diffusion, predominantly in the posterior hemisphere opposite . . . [Full Text of this Article]
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RELATED ARTICLE
Transient Homonymous Hemianopia and Positive Visual Phenomena in Patients With Nonketotic Hyperglycemia
Mehryar Taban, Richard I. Naugle, and Michael S. Lee
Arch Ophthalmol. 2007;125(6):845-847.
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RELATED LETTER
Magnetic Resonance Imaging Changes Associated With Transient Homonymous Hemianopia in Patients With Nonketotic Hyperglycemia—Reply
Michael S. Lee and Mehryar Taban
Arch Ophthalmol. 2008;126(10):1467-1468.
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