What is pyonephrosis?
Pyonephrosis is a condition where pus collects in the kidney as result of an infection with a urinary tract obstruction. A kidney infection, known as pyelonephritis, is mainly bacterial in origin. If the pus cannot drain out of the kidney due to some obstruction in the ureter usually, it accumulated within the collecting system of the kidney and can lead to the formation of an abscess. Pyoneophrosis is a very serious condition because the pus is under pressure and can therefore lead to a rapid spread of the infection possibly leading to sepsis. This is life-threatening. Pyonephrosis is a very rare condition, both in children and adults. Although it is difficult to estimate how common the condition may be, patients with blockages of the urinary tract are at a greater risk and in particular patients with a compromised immune system.