Measure of Plasma Tissue Factor to Predict a Venous Thromboembolism in Primitive Cancer of Lung

Inclusion Criteria: * Patients of more than 18 years old * Patients with cancer of lung diagnosis carried for less than 2 months and which were not handled yet, either by surgery or by chemotherapy, or by radiotherapy * Patients whose life expectancy is considered 3-month-old a superior * Patients having given writed consent * Patients affiliated to a national insurance scheme or benefiting from such a diet * Patients having received a treatment (processing) anticoagulating in preventive dose if this treatment was stopped at least 3 days before the 1st taking or patients not receiving an anticoagulating treatment (in case of curative treatment, the latter was before arrested at least 3 months Exclusion Criteria: * Patients having a hepatic disease with coagulation disorders * Patients under anticoagulants with dose guardian in 3 months preceding the study or presenting an active infection * Patients having a history of other cancer considered as cured and diagnosed for less than 5 years (with the exception of the patients operated for an in situ carcinoma of the neck of the womb or the patients having undergone the excision of a squamous-cell carcinoma)