Causes, incidence, and risk factors
Most perirenal abscesses are caused by
The biggest risk factor for perirenal abscess is
Stones are found in 20 – 60% of patients with perirenal abscess. Other risk factors for perirenal abscess include:
Having an abnormal urinary tract
Symptoms of perirenal abscess include:
Pain in the flank (side of the abdomen) or
abdomen, which may extend to the groin or down the leg
Signs and tests
The doctor or nurse will examine you. You may have tenderness in the back or abdomen.
- Blood culture
CT scanof the abdomen
Ultrasound of the abdomen
To treat perirenal abscess, the pus can be drained through a catheter that is placed through the skin or with surgery. Antibiotics should also be given, at first through a vein (IV).
In general, quick diagnosis and treatment of perirenal abscess should lead to a good outcome. Kidney stones must be treated to avoid further infections.
In rare cases, the infection can spread beyond the kidney area and into the bloodstream, which can be deadly.
If you have kidney stones, the infection may not go away.
Calling your health care provider
Call your health care provider if you have a history of kidney stones and develop:
Burning with urination
Urinary tract infection
If you have kidney stones, ask your doctor about the best way to treat them to avoid a perirenal abscess. If you undergo urologic surgery, keep the surgical area as clean as possible.