Astrocytoma

Neoplasms of the brain and spinal cord derived from glial cells which vary from histologically benign forms to highly anaplastic and malignant tumors. Fibrillary astrocytomas are the most common type and may be classified in order of increasing malignancy (grades I through IV). In the first two decades of life, astrocytomas tend to originate in the cerebellar hemispheres; in adults, they most frequently arise in the cerebrum and frequently undergo malignant transformation. (From Devita et al., Cancer: Principles and Practice of Oncology, 5th ed, pp2013-7; Holland et al., Cancer Medicine, 3d ed, p1082)

Also Known As:

Pilocytic Astrocytoma; Anaplastic Astrocytoma; Juvenile Pilocytic Astrocytoma; Subependymal Giant Cell Astrocytoma; Astrocytoma, Grade I; Astrocytoma, Grade II; Astrocytoma, Grade III; Astrocytoma, Protoplasmic; Astroglioma; Cerebral Astrocytoma; Childhood Cerebral Astrocytoma; Fibrillary Astrocytoma; Gemistocytic Astrocytoma; Intracranial Astrocytoma; Anaplastic Astrocytomas; Astrocytic Glioma; Astrocytic Gliomas; Astrocytoma, Anaplastic; Astrocytoma, Cerebral; Astrocytoma, Childhood Cerebral; Astrocytoma, Fibrillary; Astrocytoma, Gemistocytic; Astrocytoma, Intracranial; Astrocytoma, Juvenile Pilocytic; Astrocytoma, Pilocytic; Astrocytomas; Astrocytomas, Grade III; Astrogliomas; Cerebral Astrocytoma, Childhood; Cerebral Astrocytomas; Childhood Cerebral Astrocytomas; Fibrillary Astrocytomas; Gemistocytic Astrocytomas; Gliomas, Astrocytic; Grade I Astrocytoma; Grade I Astrocytomas; Grade II Astrocytoma; Grade II Astrocytomas; Grade III Astrocytoma; Grade III Astrocytomas; Intracranial Astrocytomas; Juvenile Pilocytic Astrocytomas; Mixed Oligoastrocytoma; Mixed Oligoastrocytomas; Pilocytic Astrocytoma, Juvenile; Pilocytic Astrocytomas; Pleomorphic Xanthoastrocytoma; Protoplasmic Astrocytoma; Protoplasmic Astrocytomas; Xanthoastrocytoma, Pleomorphic; Astrocytoma, Subependymal Giant Cell; Glioma, Astrocytic; Oligoastrocytoma, Mixed; Pleomorphic Xanthoastrocytomas

Neoplasms: 1324753
- Neoplasms by Histologic Type: 2
  - Germ Cell and Embryonal Neoplasms: 4454
    - Neuroectodermal Tumors: 217
      - Neuroepithelial Neoplasms: 412
        Glioma: 42261
        Astrocytoma: 7343
  - Glandular and Epithelial Neoplasms: 439
    - Neuroepithelial Neoplasms: 412
      - Glioma: 42261
        Astrocytoma: 7343
  - Nerve Tissue Neoplasms: 1
    - Neuroectodermal Tumors: 217
      - Neuroepithelial Neoplasms: 412
        Glioma: 42261
        Astrocytoma: 7343

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