Reduced olfactory bulb volume in total laryngectomy patients: a magnetic resonance imaging study

Abstract

Objectives: The olfactory bulb (OB) is a remarkably plastic structure with highly active afferent neurons, which is partly reflected by its volume. Although deterioration of olfaction after total laryngectomy is reported by many patients, this problem has not received widespread attention. There has been no study that has addressed this loss olfactory ability as a function of OB volume. The aim of this study was to determine OB volume changes after laryngectomy.