secretion decreased.РPathophysiologyРBasic pathology of dilatation of urinary tract lesion of hydronephrosis is above obstruction. Normal pelvis pressure is 10cm H2O,obstruction lead to pressure continue to increase,When the e to the 25cm H2O,glomerolar filtration stopped. Safety valve in kidney open. Urine doesn’t enter ureter and enter renal parenchyma.Vein and lymphatic vessel back flow.Pathological pelvic dilatation.РWith the pressure continue to increase,renal tussue ischemia occurred due to vascular near the tubules oppressed,resulting in renal dysfunction.?Pelvic wall es thin; renal papilla es atrophy and flat, renal parenchyma es atrophy and thin. Pelvic capacity increase. All kidney forms a dysfunctional huge water sac.?The bacterial enter blood is very dangerous.РPathophysiology
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