The clinicopathological impact of gross classification on solitary small hepatocellular carcinoma

Eiji Tsujita, Yo Ichi Yamashita, Kazuki Takeishi, Ayumi Matsuyama, Takashi Maeda, Shin Ichi Tsutsui, Hiroyuki Matsuda, Teruyoshi Ishida

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


Background/Aims: The aim of this retrospective study was to determine the effect of gross classification on the outcome of hepatic resection for small solitary hepatocellular carcinoma (HCC). Methodology: This study consisted of 179 consecutive primary HCC patients who were not preoperatively diagnosed with vascular invasion or intrahepatic metastasis. The clinicopathological impact of gross classification was compared. Patients were classified into four groups, vaguely nodular (VN) type, single nodular (SN) type, single nodular type with extranodular growth (SNEG), and confluent multinodular (CMN) type, according to the gross classification of resected specimens. Results: The SNEG and CMN types showed a significantly higher rate of MVI and intrahepatic metastasis than VN and SN type. Multivariate analysis showed SNEG and CMN type is independent predictor of MVI. The survival rates and the disease free survival rates of four groups were equal after curative hepatectomy. Conclusions: This study demonstrated that the gross classifications were correlated significantly with the prevalence of MVI or intrahepatic metastasis, and that aggressive tumor spread in the SNEG type and in the CMN type was observed even in patients with small solitary HCC.

Original languageEnglish
Pages (from-to)1726-1730
Number of pages5
Issue number127
Publication statusPublished - Oct 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Hepatology
  • Gastroenterology


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