A Teenager With Ring-Shaped Papules and Plaques on His Legs

68 CONSULTANT FOR PEDIATRICIANS | February 2015 | PediatricsConsultant360.com Visit PediatricsConsultant360.com to challenge your diagnostic acumen with past What’s Your Diagnosis? cases. You’ll also find dozens of past Photo Quiz, Radiology Quiz, and Dermclinic quizzes there to help hone your clinical analytical abilities. A 15-year-old boy presented with asymptomatic, erythematous papules and plaques with an annular pattern on the legs. The lesions have been present for 6 months and have slowly increased in size. He was in good health and was not taking any medication. There was no family history of similar skin lesions. Physical examination revealed multiple erythematous, firm, nonscaly papules and annular plaques localized to the extensor surfaces of both legs. Some of the lesions had an annular configuration with a clearer center and slightly elevated and indurated borders composed of small papules. The rest of the physical examination findings were normal.