====== High-grade astrocytoma ======

High-grade [[astrocytoma]]s are fast-growing and often spread within the brain and spinal cord. There are several types of high-grade astrocytomas. High-grade astrocytomas can be either:

Grade III tumors–[[anaplastic astrocytoma]] or [[anaplastic pleomorphic xanthoastrocytoma]].
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Grade IV tumors–[[glioblastoma]] or [[diffuse midline glioma]].
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Childhood astrocytomas usually do not spread to other parts of the body.