If an AN is suspected, a detailed patient history and a thorough otologic and neurotologic physical examination should be carried out. The first echelon of diagnostic testing begins with a pure tone audiogram, speech reception threshold, speech discrimination testing, and acoustic reflex testing. If the clinician is even moderately suspicious of the presence of an AN, the patient should undergo a Gd-MRI scan. If suspicion is low, an ABR should be performed, and if negative, the patient should be reevaluated periodically.
View details for Web of Science ID A1992HW29800003
View details for PubMedID 1625864