What is Perinephric urinoma?

A urinoma is a continued perinephric or peripelvic extravasation of urine leading to the formation of encapsulated retroperitoneal urine collection due to the disruption of the urinary collecting system. Non-obstetric urinomas are usually the result of trauma, a urologic procedure, infection, and nephrolithiasis.

What are the symptoms of urinoma?

The clinical features include malaise, vague abdominal pain, weight loss and a palpable mass. Plain films usually reveal a mass with loss of the retroperitoneal landmarks. High-dose excretion urography usually shows renal displacement, hydronephrosis and extravasation of contrast medium into the urinoma.

How is urinoma treated?

Treatment for small urinomas is usually conservative as the collection will most often be reabsorbed. Larger urinomas even without systemic signs often necessitate more aggressive medical treatment. A drainage catheter can be placed with ultrasound or CT guidance.

Where does a urinoma occur?

Subcapsular and Perirenal Urinomas (Uriniferous Pseudocysts) Whereas subcapsular urinomas are situated between the renal parenchyma and renal capsule, perirenal urinomas are located between the renal capsule and Gerota fascia.

How is Urinoma diagnosed?

Diagnosis and Imaging Features Computed tomography (CT) is the study of choice in the diagnosis of renal urine leaks and urinomas. CT protocols in patients with a suspected urine leak involve scanning the abdomen and pelvis prior to and following the intravenous administration of 100–150 mL of contrast material.

Is Urinoma serious?

Untreated urinomas can result in serious complications, including urinary peritonitis, fibrosis, fistulae, abscess formation and septic shock [7].

How is urine leakage diagnosed?

How is urinary incontinence diagnosed?

  1. Urinalysis and urine culture. These tests show whether you have a urinary tract infection (UTI) or blood or sugar in your urine.
  2. Bladder stress test.
  3. Pad test.
  4. X-rays or ultrasound.
  5. Urodynamic testing.
  6. Electromyogram (EMG).
  7. Cystoscopic exam.
  8. Cystourethrogram.

How do you test for ureteral injury?

A retrograde pyelogram (RPG) is the most accurate imaging test to evaluate the location and extent of the ureteral injury. Antegrade pyelogram also can be performed if the patient has antegrade access. A CT urogram (CT abdomen and pelvis with IV contrast and delayed images) can accurately identify ureteral injury.

How is urinoma diagnosed?

Is urinoma an infection?

Cases of infected urinomas in the literature have the common initial diagnosis of a urinary tract infection up to the point of CT or magnetic resonance imaging (MRI) [1, 3, 8].

How does a ureteral injury present?

More than 70% of the time, unilateral ureteral injury is noticed postoperatively. The patient may present with flank pain, prolonged ileus, fever, watery vaginal discharge, or mildly or significantly elevated serum creatinine levels. In cases of bilateral ureteral injury, anuria is the first clinical sign.