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Meningioma seen at autopsy, as a tumor of the dura mater extending into the cranial cavity, and can be detached from the bone along with the rest of the dura mater. Small tumors (e.g., < 2.0 cm) usually are incidental findings at autopsy without having caused symptoms. Larger tumors may cause symptoms, depending on the size and location.
A central nervous system primitive neuroectodermal tumor, often abbreviated as PNET, supratentorial PNET, or CNS-PNET, [1] is one of the 3 types of embryonal central nervous system tumors (medulloblastoma, atypical teratoid rhabdoid tumor, and PNET). [2]
Among people with PXA who were able to have their tumors completely resected during surgery, there is a long-term survival rate of 90%. After incomplete resection, the long-term survival rate is higher than 50%. Morbidity is determined by the type and evolution of the tumor, with high-graded anaplastic tumors causing more fatalities. [citation ...
Neuro-oncology is the study of brain and spinal cord neoplasms, many of which are (at least eventually) very dangerous and life-threatening (astrocytoma, glioma, glioblastoma multiforme, ependymoma, pontine glioma, and brain stem tumors are among the many examples of these).
102 out of 108 reported cases had AG tumors in a supratentorial location under the cerebral cortex (94.4%), and 88 out of 108 were found in a single lobe (81.5%). [ 3 ] 46 cases were in the left lobe of the brain and 43 in the right lobe. [ 3 ]
Astroblastoma is a rare glial tumor derived from the astroblast, a type of cell that closely resembles spongioblastoma and astrocytes. [1] Astroblastoma cells are most likely found in the supratentorial region of the brain that houses the cerebrum, an area responsible for all voluntary movements in the body. [2]
The supratentorial region contains the cerebrum, while the infratentorial region contains the cerebellum. Although the Roman era anatomist Galen commented upon it, the functional significance of this neuroanatomical division was first described using ‘modern’ terminology by John Hughlings Jackson , founding editor of the medical journal Brain .
Embryonal tumor with multilayered rosettes (ETMR) is an embryonal central nervous system tumor. [ 1 ] [ 2 ] It is considered an embryonal tumor because it arises from cells partially differentiated or still undifferentiated from birth, usually neuroepithelial cells , stem cells destined to turn into glia or neurons .