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RT 230 Ch 7

Pathology for RTs

Brain abscess is an encapsulated accumulation of pus within the cranium resulting from a cranial infection, penetrating head wound, or an infection spread thru the bloodstream
Encephalitis an infection of the brain tissue and is usually viral in nature causing headaches, malaise, and coma
Glioma most common type of primary brain tumor, composed of tissue that represents neuroglia, commonly occurring in the cerebral hemispheres of the posterior fossa
Herniated nucleus pulposus herniated disk, resulting from a degenerative disease or trauma
Hydrocephalus refers to an excessive accumulation of cerebrospinal fluid (CSF) within the ventricles of the brain
Meningioma slow growing benign brain tumor that does not invade the brain but compresses it with its growth, and originates in the arachnoid tissue
Meningitis an inflammation of the meningeal coverings of the brain and spinal cord caused by bacteria, viruses, and/or trauma that results in infections
Multiple sclerosis (MS) a chronic, progressive disease of the nervous system most commonly affecting individuals between the ages of 20 and 40 that causes muscle impairment, loss of balance, tremors, vision impairment, and urinary dysfunction
Nucleus pulposus pulpy center of the intervertebral disks
Pituitary ademona usually a benign tumor of the pituitary gland that affects hormone production
Transient ischemic attack a temporary episode of neurologic dysfunction that can precede a cerebrovasular accident
Central Nervous System (CNS) is comprised of the brain and the spinal cord
Dura mater, Arachnoid, Pia matter What are the 3 layers of the meninges?
Dura matter outermost, tough layer of the meninges
Arachnoid middle layer of meninges, cobweb appearance
Pia matter innermost layer of the meninges
Subarachnoid space a space located at the base of the brain filled with cerebrospinal fluid
Circle of Willis supplies blood to the brain
Degenerative disk disease the disk space becomes weak and ruptures, the nucleus pulposus protrudes and compresses on the spinal nerve roots
Cerebrovascular accident (CVA) or stroke caused by atherosclerotic disease affecting the blood supply to the brain
Ischemic strokes What type of stroke accounts for the majority of all strokes?
neoplasms of the pituitary Erosion of the sella turcica is most commonly associated with what?
MRI The imaging modality of choice for demonstration of herniated nucleus pulposus is?
Atherothrombotic brain infarction infarction caused by thrombosis of a cerebral artery
Medulloblastoma What neoplastic condition is highly malignant and often occurs in the cerebellum of children?
CT What modality plays a significant role in the evaluation of the CNS?
Ultrasound What modality is useful in evaluating the brain of neonates?
Created by: Chrslarsen