Congratulations to the winner of our October quiz, Edidiong C. N. Kaminska, MD, Section of Dermatology, Department of Medicine, University of Chicago, Chicago, Illinois. The correct answer to our October challenge was primary umbilical cutaneous endometriosis. For a complete discussion of this case, see the “Off-Center Fold ” section in the November Archives (Bronfenbrener R, Shraga A, Mehregan DA. Umbilical nodule in a 32-year-old woman. Arch Dermatol. 2011;147:1317-1322).
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.
October 2011 Archives Web Quiz Winner. Arch Dermatol. 2012;148(1):36. doi:10.1001/archderm.148.1.36