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).