astrocytoma

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Related to fibrillary astrocytoma: protoplasmic astrocytoma

astrocytoma

[‚as·trə‚sī′tōm·ə]
(medicine)
A slow-growing glial tumor made up of cells resembling astrocytes; often it will undergo malignant change and assume the appearance and growth characteristics of a glioblastoma.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Fibrillary Astrocytomas were the frequent histological type among astrocytoma.
Interobserver reproducibility among neuropathologists and surgical pathologists in fibrillary astrocytoma grading.
All specimens were originally diagnosed according to conventional histopathologic criteria based on the 1993 WHO Histological Typing of Tumors of the Central Nervous System.[4] The following common histologic types were selected for this study: pilocytic astrocytoma (WHO grade 1) (n = 8; age range, 2-19 years; median age, 12 years); diffuse fibrillary astrocytoma (WHO grade 2) (n = 18; age range, 1.1-64 years; median age, 38 years); anaplastic astrocytoma (WHO grade 3) (n = 4; age range, 30-47 years; median age, 44 years); and glioblastoma multiforme (WHO grade 4) (n = 30; age range, 3-73 years; median age, 58 years).
The study included 22 cases of diffuse fibrillary astrocytomas, 16 cases of glioblastomas, 7 cases ofpilocytic astrocytomas and 6 cases of anaplastic astrocytomas were retrieved from the archival materials of specialized surgical hospital in medical city.
Cerebral pilocytic astrocytoma: distinction from infiltrating fibrillary astrocytomas. Path Case Rev 1998;3:290-295.