3Wasserstrom WR, Glass JP, Posner JB. Diagnosis and treatment of leptomeningeal metastases from solid tumors: experience with 90patients [ J ]. Cancer, 1982,49:759 - 772.
4Glass JP, Melamed M, Chernik NL. Malignant cells in cerebrospinal fluid (CSF) :the meaning of a positive CSF cytology[ J]. Neurolo- gy,1979,29:1369 - 1375.
5Stockhammer G, Poewe W, Burgstaller S. Vascular endothelial growth factor in CSF : a biological marker for carcinomatous men- ingitis [J]. Neurology,2000,54:1670 -1676.
6Chamberlain MC. Leptomeningeal metastasis [ J ]. Current Opinion in Oncology,2010,22:627 -635.
7Mittl RL Jr, Yousem DM. Frequency of unexplained meningeal en- hancement in the brain after lumbar puncture [ J ]. AJNR Am J Neuroradiol, 1994,15:633 - 638.