SOLs Flashcards
TRUE/FALSE
More than 2/3 of tumours present with focal localising symptoms
TRUE
Why are headaches worse in the morning?
Slightly hypercapnic overnight as we retain CO2 while we sleep
Result in increasing cerebral blood flow and a commensurate increase in the size of the brain
Brain tumours are what percentage of childhood tumours?
20%
Why is the tentorium cerebella important in brain tumours?
In children- 70% arise below tentorium cerebelli
In adults- 70% arise above the tentorium cerebelli
What is the most subtype of brain tumour in adult?
Astrocytoma
What is the most common brain tumour in children?
Pilocytic astrocytoma
What are the most common tumour within the cranial cavity?
Metastases
What is the classic presentation of brain tumour?
Progressive neurological deficit Motor Weakness Headache Seizures Tiptoeing/Ataxia Vomiting
If headache with tiptoeing, ataxia and vomiting in children what is the differential you are considering?
Posterior foss tumour
What are the 5 aetiologies of tumour headache?
1-Raised ICP
2-Invasion/Compression of dura or periosteum
3-Secondary to diplopia or difficulty focusing
4-Extreme hypertension (as part of Cushing’s triad)
5-Psychogenic
If someone comes in with a headache what investigation should always be done?
Fundoscopy
What are the stem cells of the nervous system?
Neuroepithelial cells
What do neuroepithelial cells derive from?
Pluripotent stem cells
What defines grade IV astrocytic tumours?
If necrosis then glioblastoma multiform (grade IV)
Post astrocytic tumour removal it is safe to drive TRUE/FALSE
BOI ARE YA PLAYING
Not safe if there is a seizure risk or if left with some degree of visual field deficit. Have to inform DVLA