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Retroperitoneal Fibrosis

Synonyms of Retroperitoneal Fibrosis

  • Idiopathic Retroperitoneal Fibrosis
  • Ormond's Disease

Disorder Subdivisions

  • No subdivisions found.

General Discussion

Retroperitoneal fibrosis is a rare inflammatory disorder in which abnormal formation of fiber-like tissue (fibrosis) occurs behind the membrane that lines the cavity of the abdomen (peritoneum). This abnormal tissue growth often spreads to affect the tubes that carry urine from the kidney to the bladder (ureters). Often these tubes become blocked by the excess tissue. Specific symptoms may vary depending upon the exact location of tissue growth and how far it spreads. In most cases the cause of this disorder is unknown (idiopathic).

Symptoms

The most common symptom of retroperitoneal fibrosis is pain in the lower back or abdomen. In many cases this pain is dull, vague and difficult to localize. Additional symptoms may be weight loss, fever, nausea, a low level of circulating red blood cells (anemia), and loss of appetite. Impaired movement of a limb may occur intermittently and abnormal yellow discoloration (pigmentation) of the skin and the whites of the eyes (jaundice) may be present. Swelling of one leg may also occur. Reduced blood flow to the leg may cause pain and discoloration.

Occasionally there may be bleeding (hemorrhaging) in the stomach and intestine. In about ten percent of the cases there may be difficulty urinating. Upon examination by a physician, a mass can be felt in the rectum or abdomen in about 15 percent of individuals with this disorder. In some cases, obstruction of one or both of the tubes that carries urine from the kidney into the bladder (ureters) may also occur (unilateral or bilateral obstructive uropathy). This results in the blockage of the flow of urine and the abnormal accumulation of urine.

Depending upon where the obstruction occurs, the accumulation of urine may result in the pelvis and kidney duct becoming swollen with urine (hydronephrosis). High blood pressure (hypertension) and, eventually, kidney (renal) failure may also occur. Symptoms of renal failure include nausea and vomiting.

In rare cases, retroperitoneal fibrosis may become malignant. In some affected individuals the largest vein in the body that returns blood to the heart (inferior vena cava) may be encased by the fibrous tissue. This encasement rarely causes obstruction of the vein.

Causes

The exact cause of retroperitoneal fibrosis is not known in about two-thirds of the affected individuals (idiopathic). A drug used in the treatment and prevention of migraine headaches (methysergide) may be the cause of this rare disorder in 12 percent of cases. Malignant tumors are associated with retroperitoneal fibrosis in eight percent of affected individuals. Tissue that has been injured by trauma or surgery may be a factor in some cases.

Affected Populations

Retroperitoneal fibrosis affects males twice as often as females. The majority of cases occur in individuals between 40 and 60 years of age. However, the disorder can occur at any age, although it is extremely rare in children.

Related Disorders

Symptoms of the following disorders can be similar to those of Retroperitoneal Fibrosis. Comparisons may be useful for a differential diagnosis:

Carcinoid Syndrome is a rare, malignant disorder that affects the small bowel, pancreas, and/or stomach. Slow growing tumors can spread to the lungs, liver and ovary. Symptoms of this disorder may include flushing, diarrhea, wheezing, stomach pain, and blockage of arteries. (For more information on this disorder, choose "Carcinoid " as your search term in the Rare Disease Database.)

Scleroderma is a group of chronic disorders characterized by fiber-like tissue growth (fibrosis), degenerative changes, and vascular abnormalities of the skin. Scleroderma is the hardening and shrinking of the connective tissues of any part of the body. (For more information on this disorder, choose "Scleroderma" as your search term in the Rare Disease Database.)

Vasculitis is an inflammation of the blood vessel system which includes the veins, arteries and capillaries. This disorder may occur alone or in conjunction with allergic and rheumatic diseases. Symptoms of this disorder may be formation of blood clots, weakening of vessel walls, muscle pain, joint pain, fever, weight loss, loss of appetite, abdominal pain and shortness of breath. (For more information on this disorder, choose "Vasculitis" as your search term in the Rare Disease Database.)

Standard Therapies

Treatment of retroperitoneal fibrosis depends on the location and extent of the tissue growth.

Surgery is often very successful in freeing an organ that has been constricted by retroperitoneal fibrosis. Surgery may also be used to remove a fibrous mass. Obstruction of the ureter is often treated with ureterolysis, a surgical procedure used to free a ureter from surrounding tissue (e.g., abnormal fibrous tissue). In some cases, stents may be implanted within the ureter to provide temporary relief from obstruction.

Corticosteroid drug therapy may be used in the early stages of the disease, in conjunction with surgery, or in affected individuals who are at high risk if surgery is performed.

In some cases, abnormal fibrous growth may recur months or years after surgery or steroid therapy. In some cases, physicians may wrap a layer of fat around the ureter in an attempt to prevent the recurrence of ureter obstruction. In some reported cases, retroperitoneal fibrosis has subsided on its own without treatment (spontaneous resolution).

Investigational Therapies

Retroperitoneal fibrosis has been treated successfully with the drug azathioprine in a few cases. Another drug, Progesterone, has been used in Latin America for the treatment of retroperitoneal fibrosis. More research is needed to determine the long-term safety and effectiveness of these experimental treatments.

The drug tamoxifen has been used to treat individuals with retroperitoneal fibrosis with positive results. However, more research is necessary to determine the long-term safety and effectiveness of this potential treatment for individuals with retroperitoneal fibrosis.

Information on current clinical trials is posted on the Internet at www.clinicaltrials.gov. All studies receiving U.S. government funding, and some supported by private industry, are posted on this government web site.

For information about clinical trials being conducted at the NIH Clinical Center in Bethesda, MD, contact the NIH Patient Recruitment Office:

Tollfree: (800) 411-1222
TTY: (866) 411-1010
Email: prpl@cc.nih.gov

For information about clinical trials sponsored by private sources, contact:
www.centerwatch.com

Organizations related to Retroperitoneal Fibrosis

References

TEXTBOOKS
Schumacher Jr, HR. Multifocal fibrosclerosis. In: Bennett JC and Plum F, Eds. Cecil Textbook of Medicine, 20th ed. Philadelphia, PA: W.B. Saunders Co; 1996:1529.

Yamada T, et al., eds. Textbook of Gastroenterology. 2nd ed. Philadelphia, PA: J.B. Lippincott Company; 1995:2317.

JOURNAL ARTICLES
Meier P, et al. Retroperitoneal fibrosis, an unrecognized inflammatory disease. Clinical observations and review of the literature. Nephrologie. 2003;173-80.

Elinav H, et al. Retroperitoneal fibrosis - clinical response to steroid treatments. Harefuah. 2003;142:166-69.

Kardar AH, et al. Steroid therapy for idiopathic retroperitoneal fibrosis: dose and duration. J Urol. 2002;168:550-55.

Bani-Hani KE, et al. Retroperitoneal fibrosis. Demographic, clinical and pathological findings. Saudi Med J. 2002;23:711-15.

Pierre S, et al. Retroperitoneal fibrosis: a case report of spontaneous resolution. Clin Nephrol. 2002;57:314-19.

Monev S. Idiopathic retroperitoneal fibrosis: prompt diagnosis preserves organ function. Cleve Clin J Med. 2002;69:160-66.

Onuigbo M, et al. Retroperitoneal fibrosis: unusual cause of low back pain. South Med J. 2001;94:735-37.

Dedeoglu F, et al. Successful treatment of retroperitoneal fibrosis with tamoxifen in a child. J Rheumatol. 2001;28:1693-95.

Inoue T, et al. A case of retroperitoneal fibrosis responding to steroid therapy. Hinyokika Kiyo. 2001;47:321-24.

Lachkar A, et al. Treatment of idiopathic retroperitoneal fibrosis. Ann Urol (Paris). 2001;35:148-50.

Demko TM, et al. Obstructive nephropathy as a result of retroperitoneal fibrosis: a review of its pathogenesis and associations. J Am Soc Nephrol. 1997;8:684-88.

Klisnick A, et al. Combined idiopathic retroperitoneal and mediastinal fibrosis with pericardial involvement. Clin Nephrol. 1999;52:213-15.

Fujii K, et al. Localized nodular idiopathic retroperitoneal fibrosis: successful treatment with surgical resection. Pancreas. 1999;19:213-15.

Moroni G, et al. Retroperitoneal fibrosis and membranous nephropathy. Improvement of both diseases after treatment with steroids and immunosuppresive agents. Nephrol Dial Transplant. 1999;14:1303-05.

Grotz W, et al. Treatment of retroperitoneal fibrosis by mycophenolate mofetil and corticosteroids. Lancet. 1998;352:1195.

al-Musawi D, et al. Idiopathic retroperitoneal fibrosis treated with tamoxifen only. Br J Urol. 1998;82:442-43.

The information in NORD’s Rare Disease Database is for educational purposes only. It should never be used for diagnostic or treatment purposes. If you have questions regarding a medical condition, always seek the advice of your physician or other qualified health professional. NORD’s reports provide a brief overview of rare diseases. For more specific information, we encourage you to contact your personal physician or the agencies listed as “Resources” on this report.

Report last updated: 2008/05/05 00:00:00 GMT+0

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