====== Tumor associated cysts ======
[[Glioma]]s may have [[cyst]]ic central [[necrosis]], but may also have an associated [[cyst]] even without
necrosis. When fluid from these cysts is aspirated it can be differentiated from [[CSF]] by the fact that it
is usually xanthochromic and often clots once removed from the body (unlike e.g. fluid from a chronic subdural). Although they may occur with malignant gliomas, cysts are more commonly associated with [[pilocytic astrocytoma]]s .