粘膜白色海绵痣(White sponge naevus)又称口腔上皮痣(oral epithelia nevus)或先天性白色角化症(congenital leukokeratosis),白色皱襞性齿龈炎(white folded gingivostomotitis)。家族性粘膜白色皱襞发育异常(familial white folded dysplasia of the mucous membrona)是一种发生于口腔粘膜的遗传性灰白色海绵状角质性损害。1 ﹒粘膜白色海绵痣是常染色体显性遗传粘膜角化异常 ......