Non Interventional Study of the Validation of the Ottawa Score in Cancer Patients With Venous Thromboembolism (VTE)

Inclusion Criteria: * Cancer patients with histologically confirmed, active or evolving, solid or liquid tumour, or * Suspected malignant tumour confirmed within a month of index VTE occurrence * Treated with specific metastatic or adjuvant anti-cancer treatment * Patients with recent diagnosis of documented symptomatic or incidental VTE and a prescription of tinzaparin for 6 months * Proximal or distal VTE of lower limbs * Pulmonary embolism * Inferior or superior vena cava thrombosis * Iliac vein thrombosis Exclusion Criteria: * Skin cancer other than melanoma * Life expectancy less than 6 months * Superficial isolated thrombosis * Isolated subsegmental pulmonary embolism * Cerebral, visceral thrombosis * Superior limbs VTE or Central catheter thrombosis * Patients being treated with anticoagulants by more than 7 days