Table 1.
Data of the patients and application of the cochleae
| Age (years) | Gender | PTT | Analysis |
|---|---|---|---|
| Middle-aged | Female | 50 dB (1kH to 8kH) | IHC (surgical, meningioma) |
| Middle-aged | Male | Normal | IHC (surgical, meningioma) |
| >70 | Male | 50 dB (2kH to 4kH) | IHC (surgical, meningioma) |
| Middle-aged | Female | Normal | TEM (surgical, meningioma) |
| Middle-aged | Male | Normal | TEM (surgical, meningioma) |
| Middle-aged | Female | Normal | SEM (surgical, meningioma) |
| Middle-aged | Female | Normal | SEM (surgical, meningioma) |
| 67 | Female | Normal | sTSLIM (autopsy, meningioma) |
| 57 | Female | Normal | TEM (peril.perf.) |
| 57 | Male | Normal | TEM (peril.perf.) |
| Middle-aged | Male | Deaf | TEM (surgical, m. schwannoma) |
All patients had subjectively normal hearing
PTT pure tone threshold, TEM transmission electron microscope, SEM scanning electron microscope, sTSLIM scanning thin-sheet laser illumination microscopy, IHC immunohistochemistry, peril. Perf. perilymphatic perfusion in Innsbruck, surgical cochlear specimens obtained at surgery in Uppsala, m. schwannoma malignant schwannoma