They can be low-grade or high-grade tumors.

Generally, there is a good prognosis for low-grade tumors, and a poor prognosis for high-grade tumors.

It is often a high-grade tumor, which spreads widely through the brain stem and is hard to cure.

The increase in high-grade tumors was seen within 1 year of finasteride exposure and did not increase during this time period.

Radiation therapy is indicated for patients with inadequate surgical margins and for larger, high-grade tumors.

Patients with high-grade tumors larger than 5 cm undergo resection and receive adjuvant chemotherapy and radiation.

Unlike conventional low-grade tumors, high-grade tumors associate a plethora of factors when they metastasize to other areas of the body.

Normally, chemotherapy is not recommended until the second required resection, implying that the astroblastoma is a high-grade tumor continuing to recur every few months.

Temozolomide is a chemotherapeutic drug that is able to cross the blood-brain barrier effectively and is currently being used in therapy for high-grade tumors.

A sudden onset of symptoms tends to occur with more rapidly growing, high-grade tumors.