In case 1, a small focal area of pigmentation occurred adjacent to the scar of a previously excised superficial spreading melanoma in situ that had been removed 1 year earlier (Fig 1, A; arrow). Case 2 presented with star-like pigmentation that occurred 4 months after an incomplete shave biopsy specimen of a dermal nevus (Fig 2, A). In case 3, there was band-like pigmentation extending perpendicular to the main axis of a scar of a compound nevus that was excised a few months earlier (Fig 3, A).
