[Anatomic variations and references of the sphenopalatine foramen in cadaveric specimens: a Mexican study].

Background: The sphenopalatine foramen is located on the lateral nasal wall and has multiple variants and anatomic landmarks that are important to know to optimize RESULTS in the surgical management of posterior epistaxis.

Objective: This study describes the endoscopic anatomy of the sphenopalatine foramen, related structures and anatomic variations in a Mexican population.

Methods: We performed a prospective, observational, and experimental study.