Figure 1: (A) Blue tattoos on the right leg of a 26-year-old man covered by a linear arrangement of xanthomatous papules. (B) Histology of the lesion (hematoxylin–eosin, original magnification × 40) showing an essentially normal epidermis. There is infiltration of numerous nodular foam cells (arrows) and a few multinucleate giant cells within the dermis. Synthetic colours can be seen in the hair follicle and perifollicular tissues.