brain tumors Flashcards
what are pimary tumors of the brain
neuroeptial tissue
- glioma
meningies - menigiloi
pitutiar
- adenoma
secondary tumours of the brain
renal cell carcinoma
lung carcinoma
breast carcioma
malignant melanoma
gi tract
difference between primary and secondary tumours effect in brain
priamry - localised ot one area
secondary seen in muliitple areas
what percent of cancer paites get cerabal metatsies
15 - 30 %
what percent of canc er paietn is the cerebal metastis the first sympton
15%
what are gliomas cancer from
astrocytes
astrocyes role
hlep to support and provide nutrion to he nerve cells
how do gliomas spread
though whitle matter tractions
what are the caracterist of merigona
slow growing
extraaxial
beinging
where are meligaon noramly foudn
falx, convexity or spheonid bone
what is gbm
gliobalsoam multiforme also inow as glioblastoma
glimas vs glioblasotma
gliobals is a derive of gliomas and is mushc faster spreading
most common type of pituitary tumour
adenomas
presenttion of adenoma
visual disturabacnes due to comperssion of the optic chiasam
hormone imbalance
raised intracio pressure
csf obstion
epilecti fits
symptons of a raised icp
headache, nausea, visua distuaban, somnolece, cogntive imparie,t altered conciousnes
signs of raised icp
papillodema, 6th nerve palsy, cognative impairment, alterd consocusis, 3rd nerve palsy
which tumor contipue in hydorcephals
those clsoe to the psoter fossa tumorus
how to diagnose brain tumrous
ct, mri and bipogys
what is seen witha focal neruolgica deficet
hemipareis - one sided muscle weakness
dysphagia -
hemianopia - loss of visual field
cognitive impairment
crainal nerve palsy
endocrine disorders
what side of the brain do most tumor be visible in right handed people
left side of brian , asi it si contralatelr
what pecent of those with epilepsy have tumours
20%
above which area in the brain does a lesion cause epilepsy
lesion above hte tentorium
investigations for brian tumrous
ct, mir, pet,
if there is spected mental
ct abdo/ pelvis/ chest
mammography
bipsy, skin lesion, lymph nodes
manamgemednt of brain tumour
corticosteroids
treat epilepsy
analgesitc / antimetics
councilling
serugy
radiotlary
chemothary
endocrein repalce
treatemetn for glioblastoma
suergy- for redseion, and biopys
steroid
anticonvasion
chemo terhapy
prognosis of meingom
cured by sueryg
prognsosi of astrocysosm
if low grade - life long expecicy
high grade of gbm - 1 year
reasons agians lp
causes meningiis
caues herniatio syndrome
may cuase air emblism
may make a paietns headache worse
most common type of symsonts of brian tumoru
raied icp - headaced , nauses, vommingi papillodes
seizures
neurolgolcid deifices
