BACKGROUND: Patients with hepatocellular carcinoma (HCC) who undergo liver resection and transplantation are predicted to have a poor outcome if the disease is associated with vascular invasion. This study aimed to identify preoperative predictors of microvascular invasion in patients with HCCs larger than 5 cm. METHODS: From May 1992 to October 2005, 231 patients underwent curative hepatic resection for HCC. Of these, 96 patients had HCCs larger than 5 cm. Analysis was limited to patients without macroscopic vascular invasion (n = 65). RESULTS: Multivariate analysis showed that patients with tumors larger than 7 cm and type 2 (single nodular type with extranodular growth) and type 3 (contiguous multinodular type formed by a cluster of small and contiguous nodules) tumors had an increased risk of microscopic vascular invasion. The overall incidence of microscopic vascular invasion was 46.2% (n = 30), but only 12.5% (2/16) in patients with type 1 tumors (single nodular type that is approximately round with a clear demarcation) measuring less than 7 cm. CONCLUSION: Larger tumors (>7 cm) and type 2 and type 3 tumors are strong predictors of microvascular invasion in patients with HCCs larger than 5 cm.
BACKGROUND:Patients with hepatocellular carcinoma (HCC) who undergo liver resection and transplantation are predicted to have a poor outcome if the disease is associated with vascular invasion. This study aimed to identify preoperative predictors of microvascular invasion in patients with HCCs larger than 5 cm. METHODS: From May 1992 to October 2005, 231 patients underwent curative hepatic resection for HCC. Of these, 96 patients had HCCs larger than 5 cm. Analysis was limited to patients without macroscopic vascular invasion (n = 65). RESULTS: Multivariate analysis showed that patients with tumors larger than 7 cm and type 2 (single nodular type with extranodular growth) and type 3 (contiguous multinodular type formed by a cluster of small and contiguous nodules) tumors had an increased risk of microscopic vascular invasion. The overall incidence of microscopic vascular invasion was 46.2% (n = 30), but only 12.5% (2/16) in patients with type 1 tumors (single nodular type that is approximately round with a clear demarcation) measuring less than 7 cm. CONCLUSION: Larger tumors (>7 cm) and type 2 and type 3 tumors are strong predictors of microvascular invasion in patients with HCCs larger than 5 cm.
Authors: Timothy M Pawlik; Keith A Delman; Jean-Nicolas Vauthey; David M Nagorney; Irene Oi-Lin Ng; Iwao Ikai; Yoshio Yamaoka; Jacques Belghiti; Gregory Y Lauwers; Ronnie T Poon; Eddie K Abdalla Journal: Liver Transpl Date: 2005-09 Impact factor: 5.799
Authors: Sasan Roayaie; Jason S Frischer; Sukru H Emre; Thomas M Fishbein; Patricia A Sheiner; Max Sung; Charles M Miller; Myron E Schwartz Journal: Ann Surg Date: 2002-04 Impact factor: 12.969
Authors: Jean-Nicolas Vauthey; Gregory Y Lauwers; Nestor F Esnaola; Kim-Anh Do; Jacques Belghiti; Nadeem Mirza; Steven A Curley; Lee M Ellis; Jean-Marc Regimbeau; Asif Rashid; Karen R Cleary; David M Nagorney Journal: J Clin Oncol Date: 2002-03-15 Impact factor: 44.544
Authors: O N El-Assal; A Yamanoi; Y Soda; M Yamaguchi; M Igarashi; A Yamamoto; T Nabika; N Nagasue Journal: Hepatology Date: 1998-06 Impact factor: 17.425