Astrocytic tumors


Astrocytic tumors are primary central nervous system tumors that either arises from astrocytes or appear similar to astrocytes on histology having arisen from precursor cells. They are the most common tumors arising from glial cells.
They can be divided into those that are diffuse in growth (the vast majority, generally having higher grade and poorer prognosis) and those that are localized (tend to have a lower grade and better prognosis).
- diffuse
- diffuse astrocytoma: WHO grade II (10-15% of astrocytomas)
- anaplastic astrocytoma: WHO grade III (25% of astrocytomas)
- glioblastoma: WHO grade IV (50-60% of astrocytomas)
- localized
- pilocytic astrocytoma: WHO grade I
- subependymal giant cell astrocytoma: WHO grade I
- pilomyxoid astrocytoma: ~WHO grade II
- pleomorphic xanthoastrocytoma: WHO grade II
Additionally, some tumors also contain astrocytic components, and it is often this component that dictated biological behavior. Examples include:
All these tumors have strikingly differing imaging appearances, treatment and prognosis and thus they are, along with spinal astrocytomas discussed separately.
NB: gliomatosis cerebri, fibrillary astrocytoma and protoplasmic astrocytoma are no longer recognized in the current WHO classification of CNS tumors
Siehe auch:
- pilocytic astrocytoma
- subependymal giant cell astrocytoma
- spinal astrocytoma
- Glioblastoma multiforme
- gemistocytic astrocytoma
- oligoastrocytoma
- Gangliogliom
- Pleomorphes Xanthoastrozytom
- pilomyxoid astrocytoma
- WHO Grade II
- low grade astrocytoma
und weiter:
- Pilozytisches Astrozytom
- spinal metastases
- extrapontine myelinolysis
- Hirntumoren
- Skoliose
- vertebrale Metastasen
- Tumoren der Pinealisregion
- Tumoren der hinteren Schädelgrube
- Oligodendrogliom
- Hypophysenadenom
- anaplastic astrocytoma
- intramedullary spinal metastasis
- Pineozytom
- Zentrale pontine Myelinolyse
- meningeales Melanozytom
- Funikuläre Myelose
- fetale Hirntumoren
- intraventrikuläres Meningeom
- intraspinale zystische Läsionen
- Limbische Enzephalitis
- Pineoblastom
- Superfizielle Hämosiderose der Leptomeningen
- fibrillary astrocytoma
- hypertrophic olivary degeneration
- neoplasms of the cauda equina
- Somatostatin-Rezeptor-Szintigrafie
- Dysembryoplastischer neuroepithelialer Tumor
- astrocytoma grading
- Pinealom
- zerebrale Radionekrose
- supratentorial CNS PNET
- optic nerve pilocytic astrocytoma
- CNS primitive neuroectodermal tumour
- spinal primitive neuroectodermal tumour
- Isocitrat-Dehydrogenase
- juvenile pilocytic astrocytoma of the cerebellum
- infratentorielles pilozytisches Astrozytom
- pilomyxoid astrocytoma (PMA)
- Astrozytom des Thalamus
- beschleunigte Skelettreifung
- intraaxial
- gemistocytic astrocytoma IDH mutant (WHO Grade II)
- gemistocystic astrocytoma
- multiple FNH syndrome
- spinales Ependymom
