Studies on the Development of Hydronephrosis

Clinical observation of hydronephrosis on 97 cases was carried out and 31 exstirpated cases were studied histopathologically and histochemically. On hydronephrosis, the author recognized the reactive inflammation in early and intermediate stages histopathologically. These observations indicate the considerable influences of the infection upon the ureter and kidney, when the passage of urine was obstructed.