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Arch Ophthalmol. 2006;124:868.

Congratulations to the winner of our January quiz, Italia Andrea, MD, Piacenza, Italy. The answer to our January challenge was melanocytoma. For a complete discussion of this case, see the Clinicopathologic Reports, Case Reports, and Small Case Series section in the February ARCHIVES (Kim IK, Dryja TP, Lessell S, Gragoudas ES. Melanocytoma of the optic nerve associated with sound-induced phosphenes. Arch Ophthalmol. 2006;124:273-277).

Be sure to visit the Archives of Ophthalmology Web site (http://www.archophthalmol.com) and try your hand at our Clinical Challenge Interactive Quiz. We invite visitors to make a diagnosis based on selected information from a case report or other feature scheduled to be published in the following month's print edition of the ARCHIVES. The first visitor to e-mail our Web editors with the correct answer will be recognized in the print journal and on our Web site and will also be able to choose one of the following books published by AMA Press: Clinical Eye Atlas, Clinical Retina, or Users' Guides to the Medical Literature.