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A retrospective study based on analysis of medical records of patients with hepatocellular carcinoma treated at the Hospital Sírio-Libanês (Sao Paulo-Brazil) between 2001 and 2011 with diagnosis confirmed by imaging or histological specimen underwent surgical resection with curative intent. The study aims to determine the prognostic value of vascular complications related to cancer and to evaluate the survival rate of these patients, comparing the data with those reported in the literature.

Inclusion Criteria:

• hepatocellular carcinoma confirmed by imaging or histological specimen underwent surgical resection, with or without hepatic cirrhosis association;
• presence of venous outflow obstruction, either by direct tumor invasion or thrombosis, on portal vein or one of its main vessels;

Exclusion Criteria:

• Patients undergoing prior systemic treatment;
• Patients presenting incomplete data that do not allow their classification according to the stratification models;
• Patients whose information of progression or death can not be recovered;

Patients diagnosed with hepatocellular carcinoma confirmed by imaging or histological specimen underwent surgical resection with curative intent with the presence of venous outflow obstruction, either by direct tumor invasion or thrombosis, on portal vein or one of its main vessels.