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Medicine

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Neurology

Question
3 out of 14
 

In children most common posterior fossa tumour is: (AIIMS May 2010)



A Meningiomas
B Astrocytoma

C Medulloblastoma
D Glioblastoma multiforme

Ans. B

Astrocytoma

Table: Malignant intracranial tumours

Histological type

Common site

Malignancy

Age

Glioma (Astrocytoma)

Cerebral hemisphere

Cerebellum

Brain stem

+ + - + + +

+ - + +

+ + - + + +

+ - + +

Adult

Childhood

Adult

Childhood/Adolescece

Oligodendroglioma

Cerebral hemisphere

+ + - + + +

Adult

Medulloblastoma

Posterior fossa

+ + + - + + + +

Childhood

Ependymoma

Posterior fossa

+ + + - + + + +

Childhood/adolescence

Microglioma (Cerebral lymphoma)

Cerebral hemisphere

+ + - + + +

Adult

Table: Benign intracranial tumours

Histological type

Common site

Age

Meningioma

Cortical dura

Parasagittal

Sphenoid ridge

Suprasellar

Olfactory groove

Adult

Neurofibroma

Acoustic neuroma

Adult

Craniopharyngioma

Suprasellar

Childhood/adolescence

Pituitary adenoma

Pituitary fossa

Adult

Colloid cyst

Third ventricle

Any age

Extra Edge: Facts to Remember:

The most common tumors in children are: Leukemia

1). The most common solid tumour in children are: CNS tumors

2). The most common site of brain tumors in children is Infratentorial (cerebellar)

3). The most common site of brain tumors in neonates is supratentorial

4). The most common CNS tumors in children are Glial tumors

5). Most common posterior fossa tumor in children is astrocytoma.

6). The most common intracranial neoplasm in adult is astrocytoma.

7). Meningioma do not metastasize.

'Most common Primary Intracranial Neoplasms in adults

a. Astrocytomas (Type of Glioma and includes Glioblastoma Multiforme) ≈30%

b. Meningiomas 15%

Glial tumors

a. Astrocytomas

b. Oligodendroglioma

c. Ependymomas

Note:Most common glial tumors is astrocytomas.

Neurology Flashcard List

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