“…Detailed descriptions of the skull base are especially important for areas with complex anatomy and multiple available approaches. The anterior, middle, and posterior cranial fossa can be accessed from the front of the skull near the eye (transorbital), from the sides of the skull base (transpterygoid), from the back of the skull base (transcondylar), via the region near the pituitary gland (parasellar), and near where the spinal cord exits the cranium (clival and petroclival) [ 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 ]. Knowledge of neuroanatomy continues to grow with the development of expanded endoscopic approaches that encompass greater areas of the skull base [ 70 ].…”