Figure 4
From: An integrative survival analysis and a systematic review of the cerebellopontine angle glioblastomas
T1-weighted gadolinium-enhanced magnetization-prepared rapid gradient-echo MRI sequence of the brain in the axial plane (a) demonstrates a well-defined extraaxial solid mass of approximately 26 × 23 × 21 mm in the right CPA. T2-weighted MRI turbo spin-echo sequence of the brain in the axial plane (b) revealed peritumoral edema involving the right cerebellar peduncle and compressive effect on the brainstem, the fourth ventricle, and the right foramen of Luschka. Single-voxel MR spectroscopy of the CPA lesion (c) reveals elevated choline concentration, with no other metabolites. Follow-up T1-weighted gadolinium-enhanced MRI in the axial (d) and coronal planes (e) reveal marked enlargement of the tumor with extension to the IAC (arrow). Axial T2-weighted MRI (f) shows further expansion of the tumor mass to 35 × 34 × 33 mm and more pronounced compression on the lateral aspect of the brainstem and the fourth ventricle.
