This article gives a comprehensive review on the most recent state of the art in endoscopic sinus surgery according to the literature with the following aspects: principles and fundamentals, surgical techniques, indications, outcome, postoperative care, nasal packing and stents, technical equipment. Outcomes were only measured for endoscopy scores. Coronal CT of the paranasal sinuses before and after functional endoscotic sinus surgery. The adjustable lens allows for the abandonment of fixed-angle endoscopes, saving time and resources, without reducing the quality of imaging. Tumors of the nasal cavity and paranasal sinuses present a challenge to treat them. In order to prevent damage to the posterior branches of the great auricular nerve, the skin flap at the posterior auricular sulcus should be elevated above the auricularis posterior muscle. CT of the sinuses can help plan the safest and most effective surgery. The technique consisted of alveolar osteotomy combined with simultaneous sinus lifting.
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