Transfer of melanocytes and keratinocytes with the sandpaper method is feasible, safe, and effective as treatment for stable vitiligo, although simple dermabrasion is as effective in the long term.

The authors have indicated no significant interest with commercial supporters.

We report two sets of monozygotic twins with cutaneous mastocytosis: one set with urticaria pigmentosa and the other set with multiple mastocytomas. This is the first report of multiple mastocytomas in twins to our knowledge.