[A patient with meningeal carcinomatosis and small cell lung cancer].

Cranial metastasis because of lung cancer shows the poor prognosis. Cranial metastasis is common: In order lung, breast, skin, kidney, gastrointestinal system cancer is the 80% of the cause of metastasis. Cranial metastases are common in lung cancer especially in small cell lung cancer. Cranial metastasis can be seen in different location but leptomeningeal infiltration is rare and interesting. Because of this we will describe a case which has been death seven months after diagnose because leptomeningeal infiltration of small cell lung cancer.