A malignant neoplasm of the central nervous system that arises from astrocytes.

A tumor of the brain or spinal cord showing astrocytic differentiation. It includes the following clinicopathological entities: pilocytic astrocytoma, diffuse astrocytoma, anaplastic astrocytoma, pleomorphic xanthoastrocytoma, and subependymal giant cell astrocytoma.

A tumor that begins in the brain or spinal cord in small, star-shaped cells called astrocytes.

Astrocytoma is a neoplasm of the central nervous system derived from astrocytes. Astrocytes are a type of glial cell, and thus astrocytoma is a subtype of glioma.

Neoplasms composed of astrocytes of the brain and spinal cord derived from glial cells which vary from histologically benign forms to highly anaplastic and malignant tumors.

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)

(astrocytic tumor) A glial tumor of the brain or spinal cord showing astrocytic differentiation. It includes the following clinicopathological entities: pilocytic astrocytoma, diffuse astrocytoma, anaplastic astrocytoma, pleomorphic xanthoastrocytoma, subependymal giant cell astrocytoma, and glioblastoma.

Astrocytomas are childhood central nervous system tumors that develop from astrocytes. Diagnosis is based on MRI. Treatment is a combination of surgical resection, radiation therapy, and chemotherapy.

Astrocytomas are central nervous system (CNS) neoplasms in which the predominant cell type is derived from an immortalized astrocyte. Two classes of astrocytic tumors are recognized: those with narrow zones of infiltration (eg, pilocytic astrocytoma, subependymal giant cell astrocytoma, pleomorphic xanthoastrocytoma) and those with...

Astrocytoma is a type of cancer that can form in the brain or spinal cord. Astrocytoma begins in cells called astrocytes that support nerve cells.