Extrinsic Obstruction of the Ureter
At Montefiore Einstein Urology, you can access exceptional care for extrinsic obstruction of the ureter. As a global leader in Urology, we are an academic-based, national and international referral site for the most complex and high-risk cases. For more than a century, we have been at the forefront of innovation, research, and clinical care for genitourinary (GU) conditions.
Ranked in the top 1% of all hospitals in the nation for Urology according to U.S. News & World Report, Montefiore Einstein continues to make advances in the diagnosis and treatment of GU conditions. Our multidisciplinary team of world-renowned specialists is passionate about uncovering the latest diagnostic approaches and treatments that can improve outcomes.
At Montefiore Einstein Urology, you can expect compassionate, personalized, research-based treatment plans that meet the highest standards for quality and safety. In addition, we offer patients a full range of support services, from nutritional guidance to rehabilitative therapies.
When you need extrinsic obstruction of the ureter care, turn to our dedicated providers who will develop a highly personalized treatment plan.
What Is Extrinsic Obstruction of the Ureter
Extrinsic obstruction of the ureter is a blockage of one or both of the tubes that carry urine from the kidneys to the bladder. Extrinsic obstruction is caused by varying external factors, including malignancy, pressure from other organs like the ureters or colon, enlarged lymph nodes, and others. If left untreated, extrinsic ureteral obstruction can cause serious kidney damage.
Causes of Extrinsic Obstruction of the Ureter
There are a variety of causes for a blockage in the urinary tract, including:
- Enlarged prostate
- Health problems of the GI tract (Crohn’s disease, swelling of the appendix, diverticulitis, pancreatic lesions)
- Non-cancerous health issues in women (pregnancy, growths in womb or ovary, Gartner’s duct cyst, endometriosis, uterine prolapse, intraoperative ureteral injury)
- Scar tissue in your ureter
- Tumors or cysts in your abdominal area that press on your ureter
- Vascular disease and blood clots
Signs & Symptoms of Extrinsic Obstruction of the Ureter
Symptoms of extrinsic obstruction of the ureter depend on the location of the obstruction, whether it is partial or complete, how quickly it develops and whether it affects one or both kidneys. Some patients have no signs or symptoms, while others may experience the following:
- Blood in the urine
- Changes in how much urine you produce (urine output)
- Difficulty urinating
- High blood pressure (hypertension)
- Pain in your abdomen, lower back or sides below your ribs
- Urinary tract infection (UTI)
Diagnosing Extrinsic Obstruction of the Ureter
When diagnosing extrinsic obstruction of the ureter, healthcare providers use imaging studies like ultrasound, CT scan or MRI to visualize the ureters and identify the location of the obstruction. Blood and urine tests may also be used to assess kidney function and potential causes of the obstruction.
Treating Extrinsic Obstruction of the Ureter
Extrinsic obstruction of the ureter is treated by draining urine from the kidney(s) to avoid permanent kidney damage. Treatments include:
- Nephrostomy: a catheter placed (guided by X-ray or ultrasound) into the kidney to drain urine
- Ureteral stent: a thin, hollow plastic tube placed between the kidney and bladder, holding the ureter open and allowing urine to drain
After relieving the blockage, laparoscopic or open surgery may be performed to prevent symptoms from recurring.