Polycystic Kidney Disease (PKD) is a traditional way of saying which is a right medical result basing on the traditional diagnostic method. Traditional diagnostic method comes from the histological point of view and is a medical result from the structure of kidney. However, according to the advanced western diagnostic method, the theory of renal pathogenesis has developed from histology to cytology, and the diagnosis of kidney disease has been refined from clinical one to pathological one. Because of this, the scientific diagnosis of kidney disease becomes the analysis of the change in cell’s function basing on the damage in cells. what’s more, from the cytology’s point of view, PKD is a kind of genetic disease with the manifestation of variation hyperplasia in renal tubular epithelial cells.
