retroperitoneal fibrosis (rpf) is a rare condition with an unclear etiology, presenting with the development of aberrant chronic nonspecific fibroinflammatory tissue in the retroperitoneal space, which can result in entrapment and obstruction of the retroperitoneal structures. rpf is a subtype of chronic periaortitis, and can be divided into two types: primary (or idiopathic) and secondary. rpf...

idiopathic retroperitoneal fibrosis is a rare disorder of an unknown etiology characterized by an inflammatory proliferative fibrosing process that may involve the ureters in 80-100% of cases. â the present study was carried on a 38 years old man who was admitted to imam khomeini hospital with severe abdominal pain and renal failure. abdominal mri showed encasement of abdominal aorta and bilate...

herein, we report a 40-year old man who presented with flank and abdominal pain with dilatation of the bilateral pyelocalyceal system detected in ultrasonography. computed tomography (ct) scan showed a soft tissue mass at the level of the fourth and fifth lumbar vertebrae in the retroperitoneal region. there were no blood flow signals in 64-slice multidetector ct (mdct) which confirms the retro...

Retroperitoneal fibrosis is characterized by development of extensive fibrosis, leading to entrapment and obstruction of retroperitoneal structures, notably the ureters. In most cases, the etiology is unknown. It is occasionally associated with autoimmune diseases. Response to corticosteroids and immunosuppressive therapy suggest it is probably immunologically mediated. The symptoms and signs a...

Retroperitoneal fibrosis is a rare disease, typically with an insidious clinical course. It is thought that this disease process is perhaps an exaggerated reaction to an inciting inflammatory event. In this study, a case of retroperitoneal fibrosis is reported, in which the patient presented with typical symptoms of retroperitoneal fibrosis, along with some atypical vasculitic symptomatology. R...

CONTEXT Autoimmune pancreatitis is characterized by diffuse enlargement of the pancreas, diffuse irregular narrowing of the main pancreatic duct, severe lymphoplasmacytic infiltration and fibrosis of the pancreas. Retroperitoneal fibrosis may occasionally be associated with autoimmune pancreatitis. CASE REPORT We report a 77-year-old man with autoimmune pancreatitis associated with retroperit...

REIDBORD, H.W. & HAWK, W.A. (1965) Idiopathic retroperitoneal fibrosis and necrotizing vasculitis. Report of a case with autopsy findings and etiologic considerations. Cleveland Clinic Quarterly, 32, 19. RUST, J.A. & MAAS, H.E. (1967) Pelvic retroperitoneal fibrosis with response to prednisolone. American Journal of Obstetrics and Gynecology, 98, 654. SALDINO, R.M. & PALUBINSKAS, A.J. (1972) Me...

1. Patil KK, Wilcox DT, Samuel M et al. Management of urinary extravasation in 18 boys with posterior urethral valves. J Urol 2003; 169: 1508–1511; discussion 1511 2. Gayer G, Zissin R, Apter S et al. Urinomas caused by ureteral injuries: CT appearance. Abdom Imaging 2002; 27: 88–92 3. van Bommel EF, Siemes C, Hak LE et al. Long-term renal and patient outcome in idiopathic retroperitoneal fibro...

Retroperitoneal fibrosis is a rare condition. It is idiopathic or secondary to various diseases including autoimmune diseases and atherosclerosis [1]. Although its pathogenesis is unknown, it is now considered that immune responses may play an important role in this disease [1]. Retroperitoneal fibrosis is also seen in metastatic carcinomas from many organs as a desmoplastic reaction [1]. Howev...

Retroperitoneal fibrosis is associated with fibroblast proliferation due to inflammatory changes in adipose/fibrous tissue. Given that aortic dilation in abdominal aortic aneurysm can cause compression of the ureter, abdominal aortic aneurysm complicated by retroperitoneal fibrosis is likely to result in urinary tract obstruction. Accordingly, close attention to changes in perioperative urine v...