1. The fourth ventricle is an outpouching on the posterior part of the brainstem. 2. The common location of intracranial ependymoma is the fourth ventricle . 3. The fourth ventricle has a characteristic diamond shape in cross-sections of the human brain. 4. The first region is the ventricular zone in the roof of the fourth ventricle . 5. Choroid plexus papilloma occurs in the lateral ventricles of children and in the fourth ventricle of adults. 6. Computerized tomography confirmed these calcified masses in the posteroinferior region to the fourth ventricle just above the midline. 7. The fourth ventricle narrows at a region called the obex to become the central canal of the spinal cord. 8. This malformation involves an enlargement of the posterior fossae and fourth ventricle along with agenesis of the cerebellar vermis. 9. Cerebrospinal fluid produced in the fourth ventricle drains into the cisterna magna via the lateral apertures and median aperture. 10. This central region surrounds the central canal, which is an extension of the fourth ventricle and contains cerebrospinal fluid.
