PMC4540704_01
Case #1. Audiogram done at age 41 years, one year before death. The bone conduction thresholds were last measured at age 34. Word discrimination was not tested. The audiogram showed a severe bilateral, sensorineural hearing loss most pronounced in the mid-frequencies.
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F1
An audiogram done at age 41, one year before death (Fig. 1), demonstrated a bilateral, symmetric, sensorineural hearing loss of approximately 90dB, PTA.
PMC4540704_02
Case #2. Audiogram done at age 20, nine years before death. As in case 1 (Fig.1), there was a sensorineural hearing loss in both ears, most severe in the mid-frequencies.
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F2
An audiogram was done at age 20 (Fig. 2).