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Iran J Radiol. 2012 Mar;9(1):28-31. doi: 10.5812/iranjradiol.6343. Epub 2012 Mar 25.

The Role of Multidetector CT in the Diagnosis of Retroperitoneal Fibrosis: Report of a Case.

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  • 1Department of Radiology, Medical Imaging Center, Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran.


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 Retroperitoneal Fibrosis (RPF). Pathological examination showed infiltration of plasma cells, macrophages, lymphocytes and eosinophils accompanied by fibrosis, which is consistent with idiopathic RPF. In conclusion, 64-slice MDCT imaging is useful in the diagnosis of RPF.


Abdominal Pain; Diagnosis; Multidetector Computed Tomography; Retroperitoneal Fibrosis

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