1. The most probable profile of an ependymoma patient would be:
a. 1-2 years old, male
b. 1-2 years old, female
c. 3-4 years old, female
d. 6-7 years old, female
2. The most frequent infratentorial location is (are):
a. the lateral ventricles
b. the midline ventricular floor
c. the lateral ventricular floor
d. the ependymal lining of lateral and third ventricle
3. Ependymomas of supratentorial location:
a. are of ependymal origin
b. account for the majority of pediatric brain tumours
c. commonly grow in the frontal lobe
d. often occlude the fourth ventricle
4. Identify all of the following that are characteristic of ependymoma histology:
a. perivascular pseudorosettes
b. polygonal cells
c. calcifications
d. macroscopic heterogeneity
e. neurofibrils
f. GFAP-positive staining
5. A patient presenting with vomiting, nystagmus, and neck stiffness for nine months prior to diagnosis would most likely have a tumour in the following location:
a. the posterior fossa
b. a focal area of the temporal lobe
c. a supratentorial area
d. the pons
6. Identify all of the following properties which are associated with a worse prognosis:
a. supratentorial location
b. subarachnoid seeding
c. age of less than five years
d. radiation prescription greater than 4500cGY
e. ependymyoblastoma histology
7. A recommended approach to radiation therapy for an ependymoma that has not yet metastasized out of the posterior fossa would include:
a. focal radiation; >5000cGy
b. craniospinal irradiation; >5000cGy
c. focal radiation; <5000cGy
d. craniospinal irradiation; <5000cGy
8. Dosages used for local control are usually in the range of:
a. 30-35Gy
b. 45-50Gy
c. 65-70Gy
d. 20-25GY