Extended endonasal approaches to the anterior skull base with emphasis on the frontal sinus

Endoscopic surgery has undergone tremendous advancement in the past years. From the management of sinus and nasal pathologies, endoscopic surgery has developed to manage a variety of diseases. Current anatomical knowledge and navigation systems have enabled surgeons to tackle an array of lesions in the paranasal sinuses and even lesions extending beyond the boundaries of the sinuses themselves. Management of benign diseases via endoscopic routes is nowadays a commonality, whereas the role of endoscopic techniques in sinonasal malignancies is still being defined.