A 12-year-old boy presented with a 2-year history of multiple, asymptomatic papules that appeared in successive crops on his trunk and limbs. He was otherwise well, took no regular medication, and had no relevant medical family history. On physical examination, numerous firm, purple to erythematous, scaly papules were distributed symmetrically on his trunk and limbs (Figure 1 and Figure 2). At presentation, there were approximately 100 individual lesions, which varied from 3 to 8 mm in diameter. Older lesions had subsided spontaneously, leaving hyperpigmentation before completely resolving.The scalp, mucous membranes, palms, and soles were spared. There was no lymphadenopathy or hepatosplenomegaly, and the results of laboratory investigations, including routine hematology tests, biochemistry profile, and erythrocyte sedimentation rate, were normal.
Drummond A, Evans CD. Multiple Self-healing Erythematous Papules in an Adolescent—Quiz Case. Arch Dermatol. 2003;139(7):933-938. doi:10.1001/archderm.139.7.933-a