Abstract
For the surgical treatment of the benign or low grade malignant tumors in the skull base, the minimum cosmetic or functional deformity are required. However, the surgical access to the skull base is very difficult because this area is surrounded with facial skeleton and dense connective tissue. We usually employ two approaches for the treatment of the skull base tumor. One is a transfacial approach and another is a lateral approach.
In order to gain a good access using these approaches and minimize the morbidity, anatomic study of the skull base was performed. The findings indicate that several anatomical landmarks can be utilized in order to identify the vital structures in the skull base.