A 2-year-old girl presented with a black linear elevation of the skin on the sole of the left foot. The child had no pain, itching discomfort, and had no history of trauma. On examination, a thin black line of about 1.8 cm was observed on the sole of the left foot without erythema or papules on the periphery (Fig. 1). After local skin disinfection, we used a sterile needle in combination with forceps to extract it. It was observed under a microscope as a hair structure with no hair follicles at either end. A diagnosis of cutaneous pili migrans was made. There was no recurrence on follow-up.

Fig. 1 A distinct, S-shaped black line on the sole of the left foot with no signs of inflammation in the surrounding skin.