Purulent exudate (inflammatory cells, infectious organisms, and necrotic, sloughed urothelium) collects in the hydronephrotic collecting system ("pus under pressure") and forms an abscess. (medscape.com)
Similar to an abscess, pyonephrosis is typically associated with fever, chills, and flank pain, although some patients may be asymptomatic. (medscape.com)
If you do not pay attention to the signs of the disease and cure it in time, a urinary tract infection will be complicated by an abscess of the renal cortex, perinephric abscess, pyonephrosis, gangrenous pyelonephritis or chronic pyelonephritis. (uppmd.org)
Renal4
Pyonephrosis-pus in the renal pelvis-results from urinary tract obstruction in the presence of pyelonephritis . (medscape.com)
The true incidence of development of pyonephrosis with other renal infections is not reported. (medscape.com)
When fungus balls are present, they may obstruct the renal pelvis or the ureter, resulting in pyonephrosis. (medscape.com)
Xanthogranulomatous pyelonephritis , a clinical condition consisting of upper renal calculus and infection, has been reported to progress to pyonephrosis when obstruction is present. (medscape.com)
Hydronephrosis1
Upper urinary tract infection in combination with obstruction and hydronephrosis may lead to pyonephrosis. (medscape.com)
Inflammatory2
When indicated, laparoscopic nephrectomy for inflammatory kidney disorders such as pyonephrosis has been shown to be safe and effective. (medscape.com)
On physical examination, the dog was febrile (40°C) and both retroperitoneal masses showed typical inflammatory reaction and purulent discharge. (e-jvc.org)
Urinary3
Pyonephrosis may be caused by a broad spectrum of pathologic conditions involving either an ascending infection of the urinary tract or the hematogenous spread of a bacterial pathogen. (medscape.com)
However, the risk of pyonephrosis is increased in patients with upper urinary tract obstruction secondary to various causes (eg, stones, tumors, ureteropelvic junction [UPJ] obstruction). (medscape.com)
Aggressive treatment of any proximal urinary infection is important to avoid potentially dangerous pyonephrosis and urosepsis. (medscape.com)
Infection1
Pyonephrosis is a term given to an infection of the kidney with pus in the upper collecting system which can progress to obstruction. (rajeevclinic.com)