Pilocytic Astrocytoma


NCI: A benign neoplasm of the brain or spinal cord arising from astrocytes associated with single or multiple cysts.,NCI: A WHO grade I, relatively circumscribed, slowly growing, often cystic astrocytoma occurring in children and young adults. Histologically it is characterized by a biphasic pattern with compacted bipolar cells associated with Rosenthal fibers and multipolar cells associated with microcysts and eosinophilic bodies/hyaline droplets. (WHO)

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