<prompt> Which is the most common brain tumorSecondariesMedulloblastomaGlioblastomaCraniopharyngioma  <response>: Ans. a SecondariesRef: Sabiston 20th Page 1915 MC tumors in brain-Metastasis 70 are multiple MC site of Mets-Cerebral hemispheres. MC primary to produce Brain secondary- LUNG BREAST MC Suprasellar mass in Children-Craniopharyngioma MC suprasellar mass in adults- Pituitary adenoma 