title: [Resected Focal Nodular Hyperplasia That Was Difficult to Differentiate from Hepatocellular Carcinoma--A Case Report].
abstract: We report a case of a 62-year-old woman with a growing liver tumor that was difficult to differentiate from hepatocellular carcinoma (HCC). Abdominal CT revealed a hypervascular tumor (36 mm in diameter) in segment 3 of the liver that showed early enhancement and which had grown from 30 mm to 36 mm over the previous year. A fatty liver and gallstones were also detected. Magnetic resonance imaging (MRI) showed high intensity staining of the tumor on both T1- and T2-weighted images, and EOB-MRI revealed a mass that showed high signal intensity in the hepatobiliary phase. The imaging findings were not typical for HCC; however, the possibility of malignancy could not be ruled out due to the enlargement of the mass. Therefore, in February 2015, we performed a laparoscopic left lateral segmentectomy with cholecystectomy. After a good postoperative course, the patient was discharged from the hospital 11 days after surgery. Histological assessment revealed the tumor was focal nodular hyperplasia (FNH).
authors.affiliation: Dept. of Surgery, NTT West Osaka Hospital.
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Hashimoto
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Tatsumi
authors.forename: Junzo
authors.initials: J
authors.lastname: Shimizu
authors.forename: Kentaro
authors.initials: K
authors.lastname: Nishida
authors.forename: Ryoji
authors.initials: R
authors.lastname: Nonaka
authors.forename: Yujiro
authors.initials: Y
authors.lastname: Fujie
authors.forename: Shoichiro
authors.initials: S
authors.lastname: Fujita
authors.forename: Junya
authors.initials: J
authors.lastname: Fujita
authors.forename: Akira
authors.initials: A
authors.lastname: Kaneko
authors.forename: Shingi
authors.initials: S
authors.lastname: Imaoka
authors.forename: Tadashi
authors.initials: T
authors.lastname: Ohnishi
authors.forename: Keiko
authors.initials: K
authors.lastname: Kojima
authors.forename: Masahiko
authors.initials: M
authors.lastname: Tsujimoto
mesh_terms: D006528:Carcinoma, Hepatocellular / Q000175:diagnosis* / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D020518:Focal Nodular Hyperplasia / Q000175:diagnosis*; D006498:Hepatectomy; D006801:Humans; D010535:Laparoscopy; D008113:Liver Neoplasms / Q000473:pathology* / Q000601:surgery; D008875:Middle Aged