Humans ; Radiography ; Retroperitoneal Fibrosis ; diagnostic imaging

Retroperitoneal fibrosis was first described in 1905 by Albarran, a French urologist, who performed ureterolysis for ureteral compression produced by the disease. However, this disease became an established clinical entity by Ormond's account in the English literature in 1948. Pericystitis plastica has been used the define an extremely rare type of Idiopathic retroperitoneal fibrosis (IRF) constricting the bladder. In this study, we discussed the recovery of 29-year-old woman with pericystitis plastica who was misdiagnosed as pelvic malignancy or a chronic/subacut pelvic inflammation at the first evaluation.
Adult ; Cystitis/*radiography ; Diagnosis, Differential ; Female ; Human ; Pelvic Inflammatory Disease/*radiography ; Pelvic Neoplasms/*radiography ; Retroperitoneal Fibrosis/*radiography ; *Tomography, X-Ray Computed

Retroperitoneal fibrosis is a rare disease characterized by the formation of dense plaque of fibrous tissue covering the retroperitoneal structures. This disease is commonly presented as ureteral obstruction, but the involvement of duodenum is rare. We report a case of retroperitoneal fibrosis which was complicated with duodenal stenosis and was successfully treated with corticosteroids. A 58-yr-old man, who had history of aorto-iliac bypass graft due to arteriosclerosis obliterans with infrarenal aortic occlusion was admitted to the hospital with abdominal pain and a mass. Abdominal CT scan revealed the periaortic soft tissue mass encircling grafted aorta and stenosis of duodenal third portion. Retroperitoneal fibrosis with duodenal stenosis was diagnosed and prednisolone therapy was initiated. Follow-up CT scan showed that the patient responded to prednisolone therapy with eased pain, shrinking periaortic mass, and reduced duodenal stenosis.
Anti-Inflammatory Agents, Steroidal/therapeutic use ; Case Report ; Duodenal Obstruction/*complications/drug therapy/physiopathology/radiography ; Glucocorticoids, Synthetic/therapeutic use ; Human ; Male ; Middle Age ; Prednisolone/therapeutic use ; Retroperitoneal Fibrosis/*complications/drug therapy/physiopathology/radiography ; Tomography, X-Ray Computed/methods ; Treatment Outcome