Infratentorial, supratentorial, Posterior cronial fossa in relation of Brain tumours, so I am giving very brief introductionSupratentorial region of the brain is located above the tentorium cerebelli; and contains the cerebrum. The infratentorial region of the brain is located below the tentorium cerebelli and contains the cerebellum and brainstem. Brain stem and cerebellum are contained in the posterior cranial fossil. As brain stem and cerebellum are infratentorial in location and contained in posterior cranial fossa -› Their tumors are infratentorial posterior fossa tumors, e.g., cerebellar astrocytoma, brainstem glioma, medulloblastoma (cerebeller).">