TRUE about medulloblastoma is -

Ans is 'a' i.e. Highly radiosensitive Let's see each option one by one Option c - Medulloblastoma occurs predominantly in children. Option a & b Medulloblastoma is a highly malignant tumor and the prognosis for untreated patients is dismal, but it is an exquisitely radiosensitive tumor. - Its treatment involves aggressive surgical removal of tumor followed by irradiation of the brain. Option d (i.e. Chemotherapy is useful) - We had always thought this option to be wrong, but Schwaz surgery says that "Chemotherapy is commonly used as well". - Still we would go with option 'a' as medulloblastoma is well known to be a highly radiosensitive tumor.