الفهرس 
Microsurgical Anatomy of the Skull BaseOnly 14 pages are availabe for public view
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Abstract
Endoscopic endonasal surgery is a minimally invasive technique that allows a surgeon to go through the nose to operate on areas at the front of the brain and the top of the spine. The use of the endoscope facilitates the access to the parts of brain that would be hard to reach using traditional surgical approaches and often require large incisions and removal of parts of the skull.The development of EEAs is linked to an attempt in providing patients suffering from skull base lesions with less invasive, though still effective, direct routes with which to treat their tumors. With this premise in mind, EEAs seem to be advantageous in several instances.So, the aim of the present study is to evaluate the outcome of the extended endoscopic endonasal approach in the treatment of patients who suffered from skull base lesions and to evaluate its safety and efficacy in the treatment at Tanta University Hospitals.