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Brain Tumors PowerPoint Presentation

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On : Mar 14, 2014

In : Health & Wellness

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  • Slide 1 - Brain Tumors Neurons or Glial cells?
  • Slide 2 - Neurons Rarely, if ever responsible for tumors Don’t reproduce
  • Slide 3 - Gliomas arise from glial cells Different types of gliomas: Astrocytic tumors include astrocytomas (less malignant), anaplastic astrocytomas, and glioblastomas (most malignant) Oligodendroglial tumors vary in malignancy Glioblastomas are the most aggressive type of primary brain tumor
  • Slide 4 - Meningiomas Arise from arachnoidal cells One of three meniges that compose membrane that covers brain and spinal cord. However, these tumors are mostly (90%) benign
  • Slide 5 - Level of severity Tumors are graded on multiple factors: Growth rate Blood supply Malignancy Border distinctness *The ultimate determining factor in classifying tumors is the cell of highest malignancy, even if the overall composition of the tumor is of lesser malignancy.
  • Slide 6 - Diagnosis Balance, vision, hearing, and reflex tests are conducted to help diagnose brain tumors MRI’s used with contrast dye are subsequently performed to find tumors and detect their locations.
  • Slide 7 - Treatment Open cranial surgery Radiosurgery Many beams of targeted radiation focus on the tumor from all different directions (one session limit). Radiotherapy (multi-session) Chemotherapy
  • Slide 8 - What causes a tumor? We don’t know yet… But: 5% arise from genetic inheritance (usually extra copies chromosome 7) Environment also plays a role
  • Slide 9 - Bibliography http://www.willamette.edu/~gorr/classes/cs449/figs/neurons.jpg http://www.mayoclinic.org/metastatic-brain-tumors/ http://www.irsa.org/metastatic_tumors.html http://www.irsa.org/astrocytoma.html http://www.nlm.nih.gov/medlineplus/ency/article/007222.htm http://psychology.about.com/od/biopsychology/f/neuron01.htm http://encefalus.com/wp-content/uploads/2008/09/neuron_2.jpg http://sakshat.amrita.ac.in/VirtualLab/images/neuron.png http://tuberose.com/Graphics/brain%20tumor.jpeg http://www.wired.com/images_blogs/wiredscience/2009/04/neurons1.jpg
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