JAMA Clinical Challenge Section Editor: Huan J. Chang, MD, Contributing Editor. We encourage authors to submit papers for consideration as a JAMA Clinical Challenge. Please contact Dr Chang at firstname.lastname@example.org
Author Affiliations: Department of Dermatology, National Taiwan University Hospital Hsin-Chu Branch, Hsin-Chu, Taiwan (Dr H.-Y. Chiu) and Department of Dermatology, National Taiwan University Hospital, Taipei, Taiwan (Dr H.-C. Chiu).
A 13-year-old boy presents for evaluation of asymptomatic papuleson his penis for the past month. The number of lesions has increased slowly. He reports no other associated systemic symptoms and neither a preceding sexual exposure nor a history of sexually transmitted disease. A viral infection was suspected in medical clinics, but no improvement was observed after treatments. Clinical examination reveals many tiny, smooth, translucent, and shiny skin-colored papules affecting nearly all the glans penis and prepuce (Figure). A few similar lesions are distributed on the thighs.
Chiu H, Chiu H. A Florid, Tiny, Discrete Eruption on the Penis. JAMA. 2012;308(12):1264-1265. doi:10.1001/2012.jama.11061