Endoscopy has gained wide popularity due to its protean applications and efficacy in many surgical specialties. Diagnosis and treatment of nasal diseases have advanced in the process. However, proper training in nasal endoscopy is critical. The nose is an intricate organ fundamentally and has such proximity to other vital structures that procedural miscues can cause serious complications. This paper traces the historical development of nasal endoscopy, explains its rationale, reviews anatomic and diagnostic issues, and describes the selection of equipment and correct application of technique, emphasizing the potential for advanced diagnostic skills.
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