Neuro

Question 1

Cystic brain tumor with mural nodule

Answer 1

1- Pylocytic astrocytoma

2- Ependymoma

3- Ganglioglioma

4- Pleomorphic xanthoastrocytoma

Question 2

Lateral ventricular tumors

Answer 2

Anterior half

1. Ependymoma
2. Subepindymoma
3. Central neurocytoma
4. Subepindymal giant cell astrocytoma (in TS)

Posterior half

1. Choroid plexus papilloma / carcinoma
2. Meningioma
3. Mets

Question 3

Third ventricular tumors

Answer 3

Colloid cyst
Craniopharyngioma
Others : Glioma, chordoid glioma, germinoma, sellar/supracellar mass extension

Question 4

Fourth ventricular tumors

Answer 4

• *Ependymoma** - plastic tumor squeezing out of foramena
• *Subepindymoma**
• *Choroid plexus papilloma / carcinoma**

Epidermoid
Dermoid

Medulloblastoma (arise from roof of 4th ventricle: vermis)

Question 5

Intraventricular cyst

(Neuro)

Answer 5

Colloid cyst
Neurocystocyrcosis
Choroid plexus cyst
Ependymal cyst