Midline inferior clival lesion extends inferiorly to the level of the foramen magnum, with right sided extension into expanded right hypoglossal canal. The increased size this mostly of the component bulging into the anterolateral aspect of the foramen magnum. This now displaces and distorts the medulla and vertebral artery. The mass is T2 hyperintense, T1 hypointense, with vivid enhancement. It contains stippled susceptibility artefact which may be due to calcification or blood product.
Incidental note is made of two small developmental venous anomalies (DVA) in the left temporal lobe and left posterior frontal lobe.
Fatty atrophy of the right hemi tongue compatible with hypoglossal nerve palsy. Mucosal thickening of paranasal sinuses with complete opacification of the left maxillary sinus which is small in volume.