Atypical Ormond's disease associated with bile duct stricture mimicking cholangiocarcinoma.

A 55-year-old woman with suspected hilar cholangiocarcinoma presented with jaundice and dilated intrahepatic bile ducts owing to high-grade hepatic duct confluence stenosis. The suspected tumour and the entire extrahepatic bile duct system were resected and Roux-en-Y hepaticojejunostomy was performed. Histological investigations showed perihepatic fibrosis but no signs of malignancy. One year later the patient developed bilateral hydronephrosis caused by ureteral obstruction. Since the patient had a gynaecological history of widespread inflammation, she was referred for transabdominal operative ureterolysis combined with hysterectomy and adnexectomy. Histological investigations as well as fluorodeoxyglucose-positron emission tomography (FDG-PET) and computed tomography (CT) findings were compatible with retroperitoneal fibrosis (Ormond's disease). Treatment with tamoxifen was initiated. To the best of our knowledge, only a few cases of intraperitoneal fibroses mimicking cholangiocarcinoma followed by the typical symptoms of retroperitoneal Ormond's disease have been reported.