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CNS infections
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Papilledema
Signifies inc ICP & impending herniation.
DO NOT DO A LUMBAR PUNCTURE
Hematogenous spread
From
:
inhalation
bites
thru placenta
Direct extension
Infection that is adjacent
Direct inoculation
From
:
basilar fracture
post-neurosurgical procedure
CSF shunt
Meningitis
Worry about arachnoid and pia mater
inc WBC count
Carbonic anhydrase of SA space
Encephalitis
Come from meningitis
inflammation of brain parenchyma --> cerebral dysfunction
Kernigs Sign
try to extend a raised 90 degree leg causes pain in the hamstring
Brudzinskis
Raise head of supine patient and the knee raises 90 degrees
TB bacillemia
Primary or late reactivation of tuberculosis
subependymal tubercles rupture into the subarachnoid space which lead to meningitis.
Dense gelatinous exudate that develops in TB meningitis
Occurs at the base of the brain
surrounds the arteries and cranial nerves at the base of the brain
leads to hydrocephalus, vasculitis
which leads to infarction
Chronic meningitis of TB meningitis
Grey-green gelatinous or fibrinous exudate in basal brain surfaces.
TORCH complex agent of newborns
T
oxoplasmosis
O
ther (congenital syphilis and viruses)
R
ubella
C
ytomegalovirus
H
erpes simplex virus
AIDS
The most common fungal meningitis
The most common intracranial mass
The most common neoplasm
Cryptococcal meningitis (fungal)
toxoplasmosis (IC mass)
EBV driven promary CNS lymphoma (neoplasm)
Author
lazzsant
ID
127301
Card Set
CNS infections
Description
CNS infections
Updated
2012-01-21T02:00:59Z
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