brain tumor, MRI was performed as preoperative planning. There are appendiceal markers attached on the scalp.Again demonstrated homogeneously enhancing multilobulated extra-axial mass on the left CP angle, the size was measured around 19.8 mm x 36.1 mm, no interval change since prior scan.There is no other abnormal enhancing lesion.There is a mass effect towards left side of lower pons and left middle cerebellar peduncle which are displaced toward right side and posteriorly, no change since prior scan.The ventricles, sulci and cisterns are symmetric and unremarkable. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
Preoperative planning MRI scan weight fiducial markers attached.Left CP angle extra-axial mass with mass effect was again demonstrated, no interval change of the size and MR characteristics since prior scan.