Tumors

Question 1

What is the most common primary CNS tumor in children and where is it commonly located?

Answer 1

Pilocytic astrocytoma in the posterior fossa

Question 2

Biopsy findings of a pilocytic astrocytoma:

Answer 2

Rosenthal fibers (eosinophilic, corkscrew fibers)

Question 3

Which pediatric brain tumor is most commonly associated with raised intracranial pressure?

Answer 3

Medulloblastoma

Question 4

__________ is the most common malignant brain tumor in children and it is is characteristically located in __________

Answer 4

• Medulloblastoma
• the cerebellum

Question 5

Most common cause of acquired hypopituitarism among children.

Answer 5

Craniopharyngiomas

Question 6

What is the likely diagnosis in a child that presents with bitemporal hemianopsia and diabetes insipidus with calcified pituitary mass on imaging?

Answer 6

Craniopharyngioma

Question 7

What tumor clasiccally crosses the corpus callosum (“butterfly glioma”)?

Answer 7

Astrocytomas -Glioblastoma multiforme

Question 8

Parinaud syndrome often results from what tumor?

Answer 8

Pinealoma

Question 9

If left untreated, what brain tumor may lead to obstructive hydrocephalus?

Answer 9

a pinealoma
Ependymoma

Question 10

_______is a pediatric brain tumor that may present as obstructive hydrocephalus and will appear as a mass with scattered calcifications most commonly within the 4th ventricle

Answer 10

Ependymoma

Question 11

• Treatment Solitary brain metastasis =
• Treatment Multiple brain metastases =

Answer 11

• Surgical resection
• Whole brain radiation therapy

Question 12

Cancer of what organ most commonly metastasizes to the brain?

Answer 12

Lung

Question 13

Brain metastases are commonly seen as multiple well-circumscribed tumors at

Answer 13

Grey-white matter junction

Question 14

The most common primary CNS tumors in adults are:

Answer 14

• Glioblastoma multiforme
• Meningioma

Question 15

The most common primary CNS tumors in children are:

Answer 15

• Astrocytoma
• Medulloblastoma