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Alternative Names Return to topIdiopathic retroperitoneal fibrosis; Ormond's disease
Definition Return to top
Retroperitoneal fibrosis is a rare disorder in which the tubes (ureters) that carry urine from the kidneys to the bladder are blocked by a mass in the area behind the stomach and intestines.
Causes Return to top
Retroperitoneal fibrosis is a rare disorder that occurs when extra fibrous tissue forms in the area behind the stomach and intestines. The excess tissue forms a mass (or masses) that can block the tubes that carry urine from the kidney to the bladder. Doctors don't know why these masses form. It is most common in people aged 40 - 60. Men are twice as likely to develop the condition as women.
Symptoms Return to top
Exams and Tests Return to top
Abdominal CT scan is the best method to reveal a retroperitoneal mass.
Other tests that can help diagnose this condition include:
A biopsy of the mass may also be done to rule out cancer.
Treatment Return to top
Powerful anti-inflammatory medicines called corticosteroids are tried first. Some doctors also use a drug called tamoxifen to treat this condition.
If corticosteroid treatment doesn't work, a biopsy should be done to confirm the diagnosis. If confirmed, other medicines to suppress the immune system are usually prescribed.
When medicine does not work, surgery and stents (draining tubes) are needed.
Outlook (Prognosis) Return to top
Prognosis depends on the extent of the fibrosis and the amount of damage to the kidneys. The kidney damage may be temporary or permanent.
Possible Complications Return to top
The disorder may lead to:
When to Contact a Medical Professional Return to top
Call your health care provider if you experience lower abdomen or flank pain, particularly with decreased urine volume.
Prevention Return to top
If possible, avoid long-term use of medications that contain methysergide, which has been shown to cause retroperitoneal fibrosis. Methysergide is sometimes used to treat migraine headaches.
References Return to top
Vaglio A, Salvarani C, Buzio C. Retroperitoneal fibrosis. Lancet. 21-27 Jan 2006;367(9506);241-251.
Turnage RH, Richardson KA, Li BD, McDonald JC. Abdominal wall, umbilicus, peritoneum, mesenteries, omentum, and retroperitoneum. In: Townsend CM, Beauchamp RD, Evers BM, Mattox KL, eds. Sabiston Textbook of Surgery. 18th ed. Philadelphia, Pa: Saunders Elsevier; 2008:chap 43.
Pais VM, Strandhoy JW, Assimos DG. Pathophysiology of urinary tract obstruction. In: Wein AJ, ed. Campbell-Walsh Urology. 9th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 37.
Hsu THS, Streem SB, Nakada SY. Management of upper urinary tract obstruction. In: Wein AJ, ed. Campbell-Walsh Urology. 9th ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 38.Update Date: 2/9/2009 Updated by: Linda Vorvick, MD, Family Physician, Seattle Site Coordinator, Lecturer, Pathophysiology, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine; and Louis S. Liou, MD, PhD, Assistant Professor of Urology, Department of Surgery, Boston University School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.