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CA (620,000)
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PSYCH 1XX3 (1,000)
Joe Kim (1,000)
Lecture 19

PSYCH 1XX3 Lecture Notes - Lecture 19: Vestibular Schwannoma, Vestibulocochlear Nerve, Papilledema


Department
Psychology
Course Code
PSYCH 1XX3
Professor
Joe Kim
Lecture
19

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Benign Intracranial Hypertension
Pseudotumour cerebri
Unknown cause:
o Obese females
o Headache + papilloedema
o No focal neurology
Brain Tumours
Gliomas
Astrocytomas (60%) Most common. Slow initially, aggressive
with time
Oligodendrogliomas
Slow growing with calcification. --> Epilepsy
Ependymomas
Lining of ventricles CSF blockage.
Meningiomas
From arachnoid cells
Most common adjacent to sinuses
Slow growing but incessant
Lead to:
o Compression
o Skull erosion
Acoustic Neuroma
Arise from Schwann cells of CN VIII
Unilateral
Bilateral if NF II
Lead to
o VIII involvement - deafness
o V/VII involvement - facial
numbness/weakness
Pituitary Adenoma
Micro vs. macro
Lead to:
o Hormonal abnormalities (hypo- or
hyper-)
o Bitemporal hemianopia
Lymphoma
Associated with HIV/AIDS Non-Hodgkin B cell lymphoma
Neuroepithelial neoplasms
Common in kids
Medullablastoma
Retinoblastoma
Neuroblastoma
Ganglioblastoma
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