ECNR 4 Athens4
4 Kurs Brain Trauma
4 Kurs Brain Trauma
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Flashcards
Tbc mri
Basilar memingitis
lipid peak spectro
basalganglia infarcts
hydrocephalus
Abszess dark rim?
Kollagnous capsle
SWI Abszess and GBM
Double rim sign
only bacterial not fungal
small hypointens line
tumor - dots thick
Spectro pyogenic Abszess
Lactat, acetat, succinat
CMV
Mikrocephalie
choroiretinitis
neurologic impairment
CMV calification?
Often egg-shell
HSV 2 makes
Rapid cortical necrosis
hemorrhages
lipid and lactat increase äs purulent Abszess bacterial
Mollarets Meningitis ?
Recurrent Meningitis hsv2
HSV 1 Mortalität
70%
What means dwi restriction in HSV ?
Bad outcome
West nile virus - mri?
Diffusion restriction without other pathologies
vor allem basal ganglia
Subakute sclerosisimg encephalitis?
Measles
periventricular T2 hyperintesities
nothing or in Putamen
atrophie
Rasmussen encepahlities
Unilateral atrophie
no enhancement
low perfusion
Human forms prionen
Aquired CJD - iatrogenic or Kuro Kannibalen
hereditary 10%
sporadic Most Common 85% - dwi cortex and BG
pulvinar Sign in variant (mad cow) -no dwi in cortex but thalami
Imaging CJD
DWI in basal ganglia hight
thalami variant
Wie kommen HIV in Brain
In monozyten
Warum kann systematisch Therapie HIV nicht bekämpfen
Genotyp des Virus ändert sich im hirn
Unterschied PML und HIV
PML befällt subcortical fibers
HIV nicht
Spektroskopie in HIV
NAA down
myoinsositol up
HIV After retoviral Therapie
Improvment with initial discrepancy
PML diagnostische Sequenz
DWI - rim Diffusion restrictiom rim
MS: differention PML or Lymphoma (immunsuppressed)?
Under natalizumab PML often
in lymphoma possible
only 260 Pat of 100000 Patient with natalizumab tysabri
enhancement
rar but severe Virus Infektion
HHV-6 when?
Bond marrow transp
like bilateral HHV1
HAND
Atrophie under HIV trotz Therapie , da Brain mit anderem HIV genotyp als Reservoir
hiv associated neurodegen. Disorders
Toxo vs lymphoma?
Not DWI
not perfusion
best PET evtl SPECT Thalium
Exzentrisch Target sign ?
2 Anreicherungen bei toxoplasmose
in 30%
spezifisch
haemorraghic
T2 low or high
no enhancement in Bone marrow transp
low perfusion
everythimg is negativ
Candida vs
aspergiluus
in mri
Little lesion
big lesions
Multiple lesions not enhancing in basal ganglia
Aspergillus
Intracavitary protections
Fungal organisms in Abszess
Wall of Abszess dwi restricted ?
FungL abszess
like the cortex
Cryptococcus Entwicklung
Meningitis
dilateted Virchow basal ganglia und nucl dentatus cerebellar -plexus choroideus - Soap bubbles not enhancing
bigger bubble - gelatinös pseudozyst not enhancing
Immuno compromised periods
First month
1-6 month
> 6 month (aspergillus)
Haeufigster keim spinous Infektion?
Staph aureus 60%
enterobacter 30%
Modalität of liquor Leckage ?
CT
then
MR with cisternogaphie (DRIVE,CISS)
accuracy 97%
CT-cisternographie Sensitivität 60%
mri cisternographie Sensitivität 85-100%
when multiple Location possible - intrathecal km ct oder mri
Medial basal Canal
Persistierender Kanal im clivus
Typical spontaneus CSF Leckage cranial
Obese 35 years women
laterale defects to spenoid
Postoperativ Kontrolle after rhinoraea op?
Intrathecal Kontrast
Rhinoroea Site?
Ethmoid roof
cribriform plate
PRES enhancing ?
Pres enhancment 40%
Acute toxisch leukencephalopathie
Confusion, somnolence
symmetric bilateral centrum ovale, periventricular leukencephalopathie
drugs, infections, metabolic disorders
later in course äs pres
hypertension seldom
