[Pathomorphological studies on vulvar dystrophy].
Two hundred and thirteen cases of vulvar dystrophy were analysed pathologically. The main pathological and ultrastructural changes were degeneration of cells, capillary impairment, and inability of collagenous formation. These resulted in local dystrophy and induced vulvar "Leucismus" secondarily. Its canceration rate was low. The pathogenesis of vulvar dystrophy is discussed.