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  2. Deterministic pushdown automaton - Wikipedia

    en.wikipedia.org/wiki/Deterministic_pushdown...

    The two are not equivalent for the deterministic pushdown automaton (although they are for the non-deterministic pushdown automaton). The languages accepted by empty stack are those languages that are accepted by final state and are prefix-free: no word in the language is the prefix of another word in the language.

  3. Glial tumor - Wikipedia

    en.wikipedia.org/wiki/Glial_tumor

    Anaplastic astrocytomas are considered by the WHO to be a grade III astrocytoma and Glioblastoma is a grade IV both are referred to high-grade glial tumors. [2] Ependymal tumors are another glial tumor type of the central nervous system.

  4. Glioblastoma - Wikipedia

    en.wikipedia.org/wiki/Glioblastoma

    Glioblastoma pre (left) and post (right) resection. Surgery is the first stage of treatment of glioblastoma. An average GBM tumor contains 10 11 cells, which is on average reduced to 10 9 cells after surgery (a reduction of 99%). Benefits of surgery include resection for a pathological diagnosis, alleviation of symptoms related to mass effect ...

  5. Grading of the tumors of the central nervous system - Wikipedia

    en.wikipedia.org/wiki/Grading_of_the_tumors_of...

    The concept of grading of the tumors of the central nervous system, agreeing for such the regulation of the "progressiveness" of these neoplasias (from benign and localized tumors to malignant and infiltrating tumors), dates back to 1926 and was introduced by P. Bailey and H. Cushing, [1] in the elaboration of what turned out the first systematic classification of gliomas.

  6. Gliosarcoma - Wikipedia

    en.wikipedia.org/wiki/Gliosarcoma

    Gliosarcoma is a rare type of glioma, a cancer of the brain that comes from glial, or supportive, brain cells, as opposed to the neural brain cells. Gliosarcoma is a malignant cancer, and is defined as a glioblastoma consisting of gliomatous and sarcomatous components. [3]

  7. Gliomatosis cerebri - Wikipedia

    en.wikipedia.org/wiki/Gliomatosis_cerebri

    Gliomatosis cerebri is a rare growth pattern of some brain tumors, impacting at least three cerebral lobes, mostly with bilateral involvement of the cerebral hemispheres. It can be seen in some types of diffuse glioma, most notably glioblastoma. It consists of infiltrative threads that spread deeply into the brain, making them very difficult to ...

  8. Glioma - Wikipedia

    en.wikipedia.org/wiki/Glioma

    A glioma is a type of primary tumor that starts in the glial cells of the brain or spinal cord.They are cancerous but some are extremely slow to develop. [2] [3] Gliomas comprise about 30 percent of all brain tumors and central nervous system tumours, and 80 percent of all malignant brain tumours.

  9. Brain biopsy - Wikipedia

    en.wikipedia.org/wiki/Brain_biopsy

    Brain biopsy is the removal of a small piece of brain tissue for the diagnosis of abnormalities of the brain. It is used to diagnose tumors, infection, inflammation, and other brain disorders. By examining the tissue sample under a microscope, the biopsy sample provides information about the appropriate diagnosis and treatment.