A 2½-month-old Hispanic girl was referred to the dermatology clinic for evaluation of flesh-colored to light-brown papules on her right arm that had been present since birth. The papules were arranged in 2 groups that were somewhat linear in distribution. One group consisted of flesh-colored papules on the right forearm, and the other consisted of light-brown verrucous papules on the upper part of the right arm, just above the elbow (Figure 1). The lesions had not changed since birth and appeared to be asymptomatic. The patient was healthy, and the findings of her physical examination were otherwise unremarkable. Her mother had no medical problems, and both the pregnancy and delivery were without complications. A 2-mm punch biopsy specimen was obtained from the right forearm (Figure 2).
Morris ES, Scheel MM, Lundquist KF, Raimer SS. Grouped Papules on the Arm of an Infant. Arch Dermatol. 2000;136(4):547-552. doi: