Show pageBacklinksCite current pageExport to PDFBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== Hannover Grading Scale ====== Classification of Samii (Hannover System). see Hannover grading scale. Classification system of the [[vestibular schwannoma]] {{::hannovergrading.png?400|}} ---- T1, purely intrameatal {{::hannover_grading_scalet1.jpg?200|}} T2, intra-extrameatal T3a, occupying the [[cerebellopontine angle cistern]] {{::hannover_grading_scalet3a.jpg?200|}} T3b, reaches the trunk of the brain ([[brainstem]]). T4a, compresses the trunk of the brain T4b, displaces the trunk and compresses the fourth ventricle. hannover_grading_scale.txt Last modified: 2024/06/07 02:54by 127.0.0.1