case_images: PMC5175061_01
case_images: The audiogram reveals sudden senseurineural hearing loss on the right ear.
case_images: NCI-1-109-g001.jpg
case_images: PMC5175061_01_NCI-1-109-g001.jpg
case_images: F1
case_images: Pure tone audiogram was performed on the patient with the initial diagnosis of sudden hearing loss (Figure 1).
case_images: The audiogram after the treatment shows no improvement.
case_images: NCI-1-109-g002.jpg
case_images: PMC5175061_01_NCI-1-109-g002.jpg
case_images: F2
case_images: In November, one month after the onset of the disease, there was not any hearing improvement as detected on her pure tone audiogram (Figure 2).
case_images: The audiogram shows spontaneous recovery of the right ear.
case_images: NCI-1-109-g003.jpg
case_images: PMC5175061_01_NCI-1-109-g003.jpg
case_images: F3
case_images: Air/bone conduction 13/7 dB, 30/27 dB were reported for the left, and the right ear, respectively (Figure 3). Additionally, auditory brain response (ABR) test was performed.