case_images: PMC3639700_01
case_images: Variations in ear canal volume due to pulsating tympanic membrane.
case_images: CRIM.OTOLARYNGOLOGY2013-934386.001.jpg
case_images: PMC3639700_01_CRIM.OTOLARYNGOLOGY2013-934386.001.jpg
case_images: fig1
case_images: Pure tone audiometry results were consistent with physiological hearing loss, and an attempted long time based tympanometry was suggestive of tympanic pulsation (Figure 1).
case_images: Isolated bilateral ION enlargement without accompanying brainstem or cerebellar pathology.
case_images: CRIM.OTOLARYNGOLOGY2013-934386.002.jpg
case_images: PMC3639700_01_CRIM.OTOLARYNGOLOGY2013-934386.002.jpg
case_images: fig2
case_images: Primary brain imaging (MRA) showed a high bilateral T2 signal with subtle mass effect on the expected position of the olivary nuclei, a finding that is consistent with HOD (Figures 2(a) and 2(b)).