This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
The CNS tumor present with calcification ? 
Select and explain. 
A. Oligodendroglioma, B. Astrocytoma, C. Medulloblastoma, D. Pheochromocytoma
A: Oligodendroglioma
Answer: A: Oligodendroglioma 
Explanation: Ans. is 'a' Oligodendroglioma Although many intracranial tumors show calcification, oligodendroglioma shows calcification in 70-90% of cases.