"benign" brain tumors

Question 1

Chordomas short description

Answer 1

Benign, slow-growing.
Most prevalent in ages 50 to 60. Most common locations: *skullbase *lower portion of the spine.
May be locally invasive.
Rare.
0.2 percent of all primary brain tumors

Question 2

Where does acoustic tumours arise from?

Answer 2

The neurilemmal sheat.