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neoplasm tend to send out tiny microscopic fibrillary tentacles that spread into the surrounding brain tissue. These tentacles intermingle with healthy brain cells, making complete surgical removal difficult. However, they are low-grade tumors, with a slow rate of growth, so patients commonly survive longer than those with otherwise similar types of brain tumours, such as
341:, leading to headaches, which can be treated with oral medication. Radiosurgery uses computer modelling to focus minimal radiation doses at the exact location of the tumour, while minimising the dose to the surrounding healthy brain tissue. Radiosurgery may be a complementary treatment after regular surgery, or it may represent the primary treatment technique.
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found in the central nervous system. They may occur anywhere in the brain, or even in the spinal cord, but are most commonly found in the cerebral hemispheres. As the alternative name "diffuse astrocytoma" implies, the outline of the tumour is not clearly visible in scans, because the borders of the
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The infiltrating growth of microscopic tentacles in fibrillary astrocytomas makes complete surgical removal difficult or impossible without injuring brain tissue needed for normal neurological function. However, surgery can still reduce or control tumor size. Possible side effects of surgical
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Standard radiotherapy for fibrillary astrocytoma requires 10 to 30 sessions, depending on the subtype of the tumor, and may sometimes be performed after surgical resection to improve outcomes and survival rates. Side effects include the possibility of local
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Although chemotherapy for fibrillary astrocytoma improves overall survival, it is effective only in about 20% of cases. Researchers are currently investigating a number of promising new treatment techniques including
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Diffuse fibrillary astrocytomas arising in the brain stem favor the pons: The tumor here produces the classic hypertrophy of the affected region.
43:, "fibrillary astrocytoma" is not a separate type of tumor. Most are instead classified as low-grade variants of "astrocytoma, IDH-mutated".
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of the brain may show the presence of a diffuse mass that fails to light up when a contrast dye is given. In some cases, a
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recording of the brain's electrical activity may help to identify and localize seizure activity, especially in children.
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if the resection is incomplete, in which case further surgery or the use of other therapies may be required.
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Note: Not all brain tumors are of nervous tissue, and not all nervous tissue tumors are in the brain (see
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Please help update this article to reflect recent events or newly available information.
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241:, frequent mood changes, and headaches are among the earliest symptoms of the tumor.
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intervention include brain swelling, which can be treated with
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WHO classification of the tumors of the central nervous system
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that typically occur in adults between the ages of 20 and 50.
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may be required to confirm the nature of the tumour.
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765:Embryonal tumour with multilayered rosettes
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152:Learn how and when to remove this message
886:Malignant peripheral nerve sheath tumor
810:Primary central nervous system lymphoma
734:Dysembryoplastic neuroepithelial tumour
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90:adding citations to reliable sources
572:Subependymal giant cell astrocytoma
253:Fibrillary astrocytomas arise from
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760:Atypical teratoid rhabdoid tumor
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396:Pediatric lowgrade astrocytomas
77:needs additional citations for
854:Cranial and paraspinal nerves
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567:Pleomorphic xanthoastrocytoma
442:Tumours of the nervous system
612:Anaplastic oligodendroglioma
353:, and novel chemotherapies.
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942:Disorders causing seizures
301:Treatment options include
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739:Lhermitte–Duclos disease
663:Choroid plexus carcinoma
658:Choroid plexus papilloma
101:"Fibrillary astrocytoma"
267:glioblastoma multiforme
220:Fibrillary astrocytomas
582:Anaplastic astrocytoma
577:Fibrillary astrocytoma
170:Fibrillary astrocytoma
838:Esthesioneuroblastoma
562:Pilocytic astrocytoma
376:Low-Grade Astrocytoma
843:Ganglioneuroblastoma
748:CNS embryonal tumors
653:Choroid plexus tumor
86:improve this article
686:Gliomatosis cerebri
16:Type of brain tumor
850:Nerve sheath tumor
792:Hemangiopericytoma
401:2013-08-24 at the
327:epileptic seizures
41:WHO classification
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863:Neurofibromatosis
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681:Oligoastrocytoma
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75:This article
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870:Neurilemmoma
858:Neurofibroma
587:Glioblastoma
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525:brain tumors
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347:gene therapy
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339:inflammation
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315:chemotherapy
311:radiosurgery
307:radiotherapy
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260:, a type of
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228:brain tumors
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186:astrocytomas
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84:Please help
79:verification
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33:
937:Brain tumor
729:Neurocytoma
691:Gliosarcoma
557:Astrocytoma
477:Pituicytoma
243:Hemiparesis
175:Other names
51:August 2021
931:Categories
874:Schwannoma
787:Meningioma
630:Ependymoma
357:References
262:glial cell
258:astrocytes
255:neoplastic
142:April 2010
112:newspapers
549:Astrocyte
497:Pinealoma
450:Endocrine
381:eMedicine
297:Treatment
287:MRI scans
273:Diagnosis
249:Pathology
207:Specialty
179:Low-grade
779:Meninges
622:Ependyma
399:Archived
323:steroids
283:CT scans
239:Seizures
234:Symptoms
303:surgery
224:primary
183:diffuse
126:scholar
707:neuron
704:Mature
540:Glioma
488:Other:
461:Sellar
325:, and
313:, and
291:biopsy
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895:Other
331:recur
133:JSTOR
119:books
285:and
105:news
824:PNS
511:CNS
379:at
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279:EEG
181:or
88:by
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