Condition- CNS tumours

Question 1

How are CNS tumour classified?

Answer 1

High Grade= tumour that grows rapidly

Low Grade= slow growing tumour

Question 2

List the three most common types of tumours and state whether they are low or high grade

Answer 2

1. Glioma (60%): high grade
2. Meningioma (20%): low grade
3. Pituitary tumour (10%): low grade

Question 3

What is the most common CNS tumour seen in children?

Answer 3

Medulloblastoma

Question 4

List some risk factors for developing a CNS tumour

Answer 4

• FHx
• Hx of other cancer
• Irradiation
• Immunosupression
• Hereditary Cancer syndrome (neurofibromatosis, tuberous sclerosis)

Question 5

Describe some of the presenting symptoms of CNS tumours

Answer 5

• Symptoms of Primary (tissue infiltration): these will be focal neuro deficits specific to the location of the tumour
• Symptoms of RICP:
  
  • bilateral headache, bursting, worse on lying down/coughing/sneezing
  • Vomiting, reduced consciousness, irritability, visual changes
• Systemic Symtpoms: FLAWS

Question 6

What would be the initial investigation ordered for someone with suspected brain tumour

Answer 6

CT/MRI

Question 7

List 3 cancers that often metastasise to the brain?

Answer 7

• Lungs
• Skin
• Breast