title: Early recurring hepatocellular carcinoma after partial hepatic resection: preoperative CT findings.
abstract: OBJECTIVE
  The purpose of this study was to determine the utility of preoperative CT in predicting early recurrence of hepatocellular carcinoma after partial hepatic resection.
  
  
  METHODS
  Preoperative three-phase helical CT scans in 53 patients with hepatocellular carcinoma were retrospectively reviewed by two radiologists. In 27 patients (group I), HCC had recurred within six months, while 26 (group II) had remained disease free for at least two years. In each group, preoperative CT findings were evaluated in each group for the tumor size and number, the presence or absence of capsule, distinctness of tumor margin, perinodular extension, and the presence or absence of portal vein thrombosis.
  
  
  RESULTS
  In group I, a tumor capsule of tumor was seen in five of 27 patients (19%), and in group II, in 16 of 26 (62%) (p =.001). The tumor margin was distinct in eight patients (30%) in group I and in 20 (77%) in group II (p =.001). Multiple tumors, perinodular extension, and portal vein thrombosis were more frequently seen in group I but the differences were not statistically significant (p >.05). Tumor size was similar in each group (p >.05).
  
  
  CONCLUSIONS
  Preoperative CT findings that may help predict the early recurrence of hepatocellular carcinoma after surgical resection are an absence of capsule of tumors and an indistinct margin. Reference to these findings during preoperative CT can guide clinicians in their choice of treatment.
authors.affiliation: Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. jhlim@smc.samsung.co.kr
authors.forename: J H
authors.initials: JH
authors.lastname: Lim
authors.forename: H J
authors.initials: HJ
authors.lastname: Jang
authors.forename: E Y
authors.initials: EY
authors.lastname: Kim
authors.forename: C K
authors.initials: CK
authors.lastname: Park
authors.forename: J W
authors.initials: JW
authors.lastname: Joh
authors.forename: Y I
authors.initials: YI
authors.lastname: Kim
mesh_terms: D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging* / Q000601:surgery; D016022:Case-Control Studies; D005260:Female; D006498:Hepatectomy; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000000981:diagnostic imaging* / Q000601:surgery; D011300:Preoperative Care; D012189:Retrospective Studies; D013997:Time Factors; D014057:Tomography, X-Ray Computed