Question
Most common type of primary tumor of the organ shown in the image is :

A. Glioma
B. Ependymoma
C. Medulloblastoma
D. Astrocytoma
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Correct Answer » A Explanation |
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Ans is A Glioma
Image shown is of a Brain Tumour
CLASSIFICATION OF BRAIN TUMORS
Primary tumors of the brain
1.Gliomas( most common brain tumors)
Lowest grade tumors
- Pilocytic astrocytoma
- Subependymal giant cell astrocytoma
- Protoplasmic astrocytoma
- Ganglioglioma
- Xanthomatous astrocytoma
- Subependymoma
Lower grade malignancies
- Fibrillary (gemistocytic, protoplasmic) astrocytoma
- Ependymoma
- Oligodendroglioma
- Mixed oligo-astrocytoma
- Optic nerve glioma
Higher-grade malignancies
- Anaplastic astrocytoma
- Anaplastic oligodendroglioma
- Anaplastic mixed glioma
Highest-grade malignancies
- Glioblastoma multiforme
- Gliosarcoma
- Gliomatosis cerebri
2.Meningioma
- Benign
- Atypical
- Malignant
3.Primitive neuroectodermal tumors
- Medulloblastoma
- Ependymoblastoma
- Pineoblastoma
4. Pituitary tumors
- Pituitary adenoma
- Pituitary carcinoma
- Craniopharyngioma
- Rathke’s cleft cyst
5. Pineal Tumors
- Pineal cyst
- Pineocytoma
- Pineoblastoma
- Germinoma
- Mixed germ cell tumor
- Pineal gliomas
- Pineal teratoma
6. Choroid plexus tumors
- Choroid plexus papilloma
- Choroid plexus carcinoma
7. Other, more benign primary tumors
- Neurocytoma
- Dysembroplastic neuroepithelial tumor
- Lipoma
- Hemangioblastoma
- Hamartoma
- Teratoma
8. Tumors of nerves and/or nerve sheaths
- Neuroma
- Schwannoma
- Neurofibroma
9. Cysts
- Colloid cyst
- Arachnoid cysts
- Dermoid
- Epidermoid
- Rathke’s cleft cyst
- Pineal cyst
10. Other primary tumors, including skull base
- Chondroma
- Chordoma
- Sarcomas
- Gliosarcoma
- Chondrosarcoma
- Rhabdomyosarcoma
11. Primary Central Nervous System Lymphoma
Metastatic brain tumors and carcinomatous meningitis


