Congratulations to the winner of our December quiz, Jianjun Qiao, MD, PhD, Department of Dermatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China. The correct answer to our December challenge was polycythemia vera. For a complete discussion of this case, see the Off-Center Fold section in the January Archives (Prodanovic EM, Frater JL, Burkemper NM, Hurley MY. Pruritic indurated plaques on the legs of a 62-year-old woman. Arch Dermatol. 2010;147:109-114).
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.
December 2010 Archives Web Quiz Winner. Arch Dermatol. 2011;147(3):292. doi:10.1001/archdermatol.2011.6