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Initial House-Brackmann grade according to magnetic resonance imaging (MRI) findings of the mastoid area in Bell’s palsy (BP) and Ramsay Hunt syndrome (RHS).
| MRI finding in mastoid area | |||
|---|---|---|---|
| Normal | Mastoid effusion | ||
| House-Brackmann grade | |||
| BP (n = 128) | 3.2 ± 0.8 (n = 128) | NA (n = 0) | |
| RHS (n = 30) | 3.4 ± 0.8 (n = 16) | 3.8 ± 1.2 (n = 14) | P = 0.201 |
NA, not applicable.
