title: Multiple inflammatory pseudotumor of the liver, mimicking cholangiocarcinoma with tumor embolus in the hepatic vein: report of a case.
abstract: A 68-year-old Japanese woman complaining of general fatigue and intermittent high fever was admitted to our hospital. Abdominal ultrasonography showed two tumors in the lateral segment of the liver, with soft tissue in the left hepatic vein that was considered to be a tumor embolus. A diagnosis of cholangiocarcinoma was made based on various radiological and laboratory examinations and therefore a surgical resection was performed. Microscopically, the tumor consisted of inflammatory cells, which had aggressively invaded the hepatic vein and Arantius' duct. The pathological diagnosis was inflammatory pseudotumor (IPT) that had invaded the hepatic vein. Although many cases of hepatic IPT have been previously reported, cases of hepatic IPT massively invading the hepatic vein are very rare as far as we could determine, based on a literature search. We herein report this case and discuss the diagnosis and treatment regarding hepatic IPT with massive venous invasion.
authors.affiliation: Department of Surgery, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga City, Saga, 849-8501, Japan.
authors.forename: Keita
authors.initials: K
authors.lastname: Kai
authors.forename: Satoru
authors.initials: S
authors.lastname: Matsuyama
authors.forename: Takao
authors.initials: T
authors.lastname: Ohtsuka
authors.forename: Kenji
authors.initials: K
authors.lastname: Kitahara
authors.forename: Daisuke
authors.initials: D
authors.lastname: Mori
authors.forename: Kohji
authors.initials: K
authors.lastname: Miyazaki
mesh_terms: D000368:Aged; D001650:Bile Duct Neoplasms / Q000150:complications / Q000175:diagnosis; D001653:Bile Ducts, Intrahepatic; D018281:Cholangiocarcinoma / Q000150:complications / Q000175:diagnosis / Q000556:secondary; D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D005260:Female; D006104:Granuloma, Plasma Cell / Q000175:diagnosis*; D006503:Hepatic Veins; D006801:Humans; D008107:Liver Diseases / Q000175:diagnosis*; D009360:Neoplastic Cells, Circulating; D019043:Vascular Neoplasms / Q000556:secondary