gliosarcoma

glioblastoma with sarcomatous component; presumably from malignant transformation of vascular elements.

General

glioblastoma multiforme (GBM) or astrocytoma grade IV sarcoma

References

WHO International Histological Classification of Tumors. Histological Typing of Tumours of the Central Nervous System. Kleihues et al. Springer-Verlag 2nd ed. 1993