Congratulations to the winner of our June quiz, Farzam Gorouhi, MD, Center for Research and Training in Skin Diseases and Leprosy, Medical Sciences, University of Tehran, Tehran, Iran. The correct answer to our May challenge was factitial dermatitis. For a complete discussion of this case, see the Off-Center Fold section in the July Archives (Heydendael VMR, Hoekzema R. Acute blue patch on the forearm. Arch Dermatol. 2007;143:937-942).