Vascular rich tumor arising from pericytes surrounding the endothelial lining of blood vessels.
Can occur in virtually any site of the body.
Sarcomatous type tumor.
Accounts for less than 1% of brain tumors.
Majority of cases occur between 40-45 years of age.
Propensity to recur either locally or regionally.
Recurrences are generally late.
Tumors show vascularity with arteriovenous shunts.
80% of cases have hemorrhage and necrosis within the tumors.
Hstologically positive for mesenchymal marker vimentin.
Surgical resection is the pref