Pathology 2420A Lecture Notes - Lecture 12: Carotid Endarterectomy, Glioma, Intracranial Hemorrhage
18 Dec 2017
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Document Summary
Canada and around the world. death in individuals under the age of 45: stroke is the third most common cause of death, Other diseases are suspected to be organic, but the relevant lesions / abnormalities remain elusive (e. g. schizophrenia). In the pns, axons are associated with schwann cells, which also wrap themselves around nerve fibers to form peripheral type myelin: a bundle of myelinated and non-myelinated nerve fibers constitute a peripheral nerve. An expanding glioma in the right hemisphere is causing marked right to left midline shift, ventricular distortion (note compressed right lateral ventricle), subfalcine and uncal herniations. Chromatolysis: an injured neuron is swollen with fluid and the cytoplasm appears pale. The distinctive nissl substance has been pushed to the margins of the cell, as has the nucleus in one of these neurons. Neuronophagia: leukocytes (neutrophils, macrophages) may accumulate at sites of injury and neuronal necrosis to phagocytose debris and dead cells. This example, from a case of acute poliomyelitis.
