“…It may occur, for example, in lichen planus, lupus erythem atosus, C.ivatte's poikilo derma, Jacobi's poikiloderma, and Field's melanosis [6], Other pos sible names have therefore been considered. Over the years a variety of descriptive titles have been offered; these include systematic naevus formation [2], melanosis corii degeneratira [38], melanoblastosis cutis linearis sive systematisata (sic) [5]. and nevus reticularis et pigmentosus [24], In our opinion, the objections which apply to " incontinentia pigm enti" apply at least as much to these more cumbersome titles.…”