Endonasal approaches to maxillary sinus

Operating on the maxillary sinus has been a part of the otorhinolaryngologist\'s surgical repertoire being perceived as the most accessible sinus. Following the advent of endoscopic sinus surgery and advances in angled endoscopes and surgical instruments, approaches to the maxillary sinus have evolved leaving open approaches largely redundant. This review article will guide the readers through the key anatomical principles and techniques available for endoscopic approaches to the maxillary sinus.