title: Non-B non-C Hepatocellular Carcinoma: the Risk Factors for Recurrence and the Types of Recurrence Following Hepatic Resection.
abstract: OBJECTIVE
  Risk factors for recurrence and types of recurrence following hepatic resection for non-B non-C hepatitis hepatocellular carcinoma (NBC-HCC) have not yet been established.
  
  
  METHODS
  The clinicopathological data of 76 patients with NBC-HCC were retrospectively reviewed. Risk factors for postoperative recurrence were analyzed using univariate and multivariate analyses. In addition, types of intrahepatic recurrence were investigated.
  
  
  RESULTS
  Of the 76 patients, 38 (50%) developed recurrence during the follow-up period, with disease-free survival rates at 1/3/5 years of 72%/46%/40%, respectively. Of the 38 patients with recurrence, 36 (95%) were found to have recurrence within three years after surgery. Of the 38 patients, 34 exhibited intrahe patic recurrence. In multivariate analysis, Child-Pugh B (p = 0.009) and microscopic vascular invasion (MVI) (p = 0.002) were independent risk factors for postoperative recurrence. Based on our definitions, of the 34 patients with intrahepatic recurrence, recurrence at the stump was present in one patient, multicentric recurrence in 11 patients and intrahepatic metastasis in 22 patients.
  
  
  CONCLUSIONS
  Child-Pugh B and MVI are independent risk factors for the postoperative recurrence. Although most recurrences occurred within three years after hepatic resection, incidence of multicentric recurrence is not negligible. Preventing recurrence according to types of recurrence is therefore considered to be essential.
authors.forename: Shogo
authors.initials: S
authors.lastname: Tanaka
authors.forename: Yuji
authors.initials: Y
authors.lastname: Iimuro
authors.forename: Tadamichi
authors.initials: T
authors.lastname: Hirano
authors.forename: Seikan
authors.initials: S
authors.lastname: Hai
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Suzumura
authors.forename: Jiro
authors.initials: J
authors.lastname: Fujimoto
mesh_terms: D000368:Aged; D006528:Carcinoma, Hepatocellular / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D018572:Disease-Free Survival; D005260:Female; D006498:Hepatectomy / Q000009:adverse effects* / Q000401:mortality; D006801:Humans; D053208:Kaplan-Meier Estimate; D008113:Liver Neoplasms / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009361:Neoplasm Invasiveness; D009364:Neoplasm Recurrence, Local; D009367:Neoplasm Staging; D016016:Proportional Hazards Models; D012189:Retrospective Studies; D012307:Risk Factors; D013997:Time Factors; D016896:Treatment Outcome