Congratulations to the winner of our July quiz, Jose A. Valerio, MD, Jackson Park Hospital, Chicago, Illinois. The correct answer to our July challenge was multinucleate cell angiohistiocytoma. For a complete discussion of this case, see the “Off-Center Fold ” section in the August Archives (Echols K, Sigmon J, Sheehan D, Davis L. Skin-colored nodules on the knuckles. Arch Dermatol. 2011;147:975-980).