[Meningeal fibrosarcomas].

The authors present 4 operated cases of primary fibro sarcomas of the dura mater. Only, a few number of cases had been described in the literature. In Zulch's classification (1957) of 6000 brain tumors, there were 162 cases of sarcoma (i.

[Clinical pathological study of two cases of gliosarcoma (author's transl)].

The authors report 2 cases of frontal tumors in adult men with neuroradiological signs of malignant glial tumor. Histological study allowed to diagnose a mixed gliosarcomatosis tumor. Scannographical, histological and ultrastructural signs are specifically studied.