Variaciones anatómicas del origen de la arteria laberíntica en una muestra de encéfalos en Colombia

Introduction: The labyrinthine artery runs through the internal auditory meatus until the inner ear, providing irrigation. Two possible anatomical variants of its origin have been described: as a direct branch of the basilar artery or as a branch of the anterior inferior cerebellar artery. Objective: To identify the prevalence of labyrinthine artery origin. Materials and methods: A descriptive analytical study on the origin of the labyrinthine artery was carried out using quantitative methods in a sample of 29 brains obtained by convenience sampling. Results: It was established that the labyrinthine artery originated from the basilar artery in 22 (75.9%) brains; in the remaining 7 (24.1%), it emerged as a branch of the anterior inferior cerebellar artery. Conclusion: The origin of the labyrinthine artery in the selected sample has a higher prevalence in the basilar artery than in the anterior inferior cerebellar artery, finding that resembles some investigations contrasted with this study.