[Occult cancer and venous thromboembolism: which screening in patients with inaugural deep vein thrombosis?].

The association between thrombosis and cancer, initially evidenced in metastatic patients is well recognized and now described in patients with occult cancer where venous thrombosis may be the first clinical manifestation (Trousseau's syndrome). In this review, clinical and epidemiological interactions between thrombosis and cancer are described in five distinct step: venous thrombosis during malignancy and occult cancer, period of large increased in the risk for diagnosis of cancer, patients or venous thrombosis with increased risk for occult cancer, extensive or not extensive screening for occult cancer, earlier occult cancer detection associated or not with improved treatment possibilities and thus prognosis.