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Arch Dermatol. 2007;143(12):1577.

Congratulations to the winner of our September quiz, Mahmood Saeed Kalil, MD, Shaqra Hospital, Shaqra, Saudi Arabia. The correct answer to our September challenge was lobomycosis. For a complete discussion of this case, see the Off-Center Fold section in the October Archives (Chrusciak-Talhari A, Talhari C, Nunes de Souza Santos M, Ferreira LC, Talhari S. Nodular lesions on the arm. Arch Dermatol. 2007;143[10]:1323-1328).

Be sure to visit the Archives of Dermatology Web site (http://www.archdermatol.com) to try your hand at the 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 receive a free copy of The Art of JAMA II.